Add REST API handler tests for zones, records, and middleware

Cover all REST handlers with httptest-based tests using real SQLite:
zones (list, get, create, update, delete), records (list, get, create,
update, delete with validation/conflict cases), requireAdmin middleware
(admin, non-admin, missing context), and utility functions (writeJSON,
writeError, extractBearerToken, tokenInfoFromContext).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,8 @@
+/mcns
+srv/
+*.db
+*.db-wal
+*.db-shm
+.idea/
+.vscode/
+.DS_Store

.golangci.yaml

@@ -0,0 +1,90 @@
+# golangci-lint v2 configuration for mcns.
+# Principle: fail loudly. Security and correctness issues are errors, not warnings.
+
+version: "2"
+
+run:
+  timeout: 5m
+  tests: true
+
+linters:
+  default: none
+  enable:
+    # --- Correctness ---
+    - errcheck
+    - govet
+    - ineffassign
+    - unused
+
+    # --- Error handling ---
+    - errorlint
+
+    # --- Security ---
+    - gosec
+    - staticcheck
+
+    # --- Style / conventions ---
+    - revive
+
+  settings:
+    errcheck:
+      check-blank: false
+      check-type-assertions: true
+
+    govet:
+      enable-all: true
+      disable:
+        - shadow
+        - fieldalignment
+
+    gosec:
+      severity: medium
+      confidence: medium
+      excludes:
+        - G104
+
+    errorlint:
+      errorf: true
+      asserts: true
+      comparison: true
+
+    revive:
+      rules:
+        - name: error-return
+          severity: error
+        - name: unexported-return
+          severity: error
+        - name: error-strings
+          severity: warning
+        - name: if-return
+          severity: warning
+        - name: increment-decrement
+          severity: warning
+        - name: var-naming
+          severity: warning
+        - name: range
+          severity: warning
+        - name: time-naming
+          severity: warning
+        - name: indent-error-flow
+          severity: warning
+        - name: early-return
+          severity: warning
+
+formatters:
+  enable:
+    - gofmt
+    - goimports
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0
+
+  exclusions:
+    paths:
+      - vendor
+    rules:
+      - path: "_test\\.go"
+        linters:
+          - gosec
+        text: "G101"

ARCHITECTURE.md

@@ -0,0 +1,423 @@
+# MCNS Architecture
+
+Metacircular Networking Service — an authoritative DNS server for the
+Metacircular platform with a management API for dynamic record updates.
+
+## System Overview
+
+MCNS replaces the CoreDNS precursor with a purpose-built Go DNS server.
+It serves authoritative DNS for platform zones (e.g.,
+`svc.mcp.metacircular.net`, `mcp.metacircular.net`) and forwards all
+other queries to upstream resolvers. Records are stored in SQLite and
+managed via gRPC and REST APIs authenticated through MCIAS.
+
+### Architecture Layers
+
+```
+┌─────────────────────────────────────────────────────────┐
+│                     Clients                              │
+│  DNS resolvers (port 53)  │  API clients (8443/9443)    │
+└──────────┬────────────────┴──────────────┬──────────────┘
+           │                               │
+┌──────────▼──────────┐   ┌───────────────▼───────────────┐
+│     DNS Server      │   │       Management API           │
+│  UDP+TCP :53        │   │  REST :8443  │  gRPC :9443    │
+│  miekg/dns          │   │  chi router  │  grpc-go       │
+└──────────┬──────────┘   └───────────────┬───────────────┘
+           │                               │
+           │         ┌─────────────────┐   │
+           │         │   Auth Layer    │   │
+           │         │   MCIAS via     │   │
+           │         │   mcdsl/auth    │   │
+           │         └────────┬────────┘   │
+           │                  │            │
+┌──────────▼──────────────────▼────────────▼──────────────┐
+│                    Storage Layer                          │
+│              SQLite (zones + records)                     │
+└──────────────────────────┬──────────────────────────────┘
+                           │
+              ┌────────────▼────────────┐
+              │     Upstream Forwarder  │
+              │  1.1.1.1 / 8.8.8.8     │
+              └─────────────────────────┘
+```
+
+### Design Principles
+
+1. **DNS is the fast path.** The DNS handler reads from SQLite and
+   responds. No locks beyond SQLite's own WAL reader concurrency. DNS
+   queries never touch the auth layer.
+2. **Management is the authenticated path.** All record mutations go
+   through the REST/gRPC API, authenticated via MCIAS.
+3. **Immediate consistency.** Record changes are visible to DNS queries
+   as soon as the SQLite transaction commits. No restart required.
+4. **Forward everything else.** Non-authoritative queries are forwarded
+   to configured upstream resolvers. Forwarded responses are cached
+   in-memory with TTL-based expiry.
+
+## Record Types
+
+v1 supports three record types:
+
+| Type | Value Format | Example |
+|------|-------------|---------|
+| A | IPv4 address | `192.168.88.181` |
+| AAAA | IPv6 address | `2001:db8::1` |
+| CNAME | Fully-qualified domain name | `rift.mcp.metacircular.net.` |
+
+CNAME records follow standard DNS rules: a name with a CNAME record
+must not have any other record types (enforced at the database level).
+
+## DNS Server
+
+### Listening
+
+The DNS server listens on a configurable address (default `:53`) for
+both UDP and TCP. UDP is the primary transport; TCP is required for
+responses exceeding 512 bytes and for zone transfer compatibility.
+
+### Query Handling
+
+```
+Query received
+  │
+  ├─ Is the qname within an authoritative zone?
+  │    │
+  │    ├─ Yes → Look up records from SQLite
+  │    │         ├─ Records found → Build authoritative response (AA=1)
+  │    │         └─ No records → Return NXDOMAIN (AA=1, SOA in authority)
+  │    │
+  │    └─ No → Forward to upstream
+  │              ├─ Check cache → Hit → Return cached response
+  │              └─ Miss → Query upstream, cache response, return
+  │
+  └─ Special cases:
+       ├─ SOA query for zone apex → Return SOA from zone config
+       └─ NS query for zone apex → Return NS from zone config
+```
+
+### SOA Serial Management
+
+Zone SOA serial numbers use the YYYYMMDDNN format. When a record is
+created, updated, or deleted, the zone's serial is auto-incremented:
+
+- If the current serial's date prefix matches today, increment NN.
+- If the date prefix is older, reset to today with NN=01.
+- Maximum 99 changes per day per zone before the counter overflows to
+  the next day.
+
+### Forwarding and Caching
+
+Non-authoritative queries are forwarded to upstream resolvers configured
+in `[dns]`. The forwarder:
+
+- Tries each upstream in order, with a 2-second timeout per attempt.
+- Caches successful responses keyed by (qname, qtype, qclass).
+- Cache TTL is the minimum TTL from the response, capped at 300 seconds.
+- Cache is in-memory with lazy expiry (checked on read).
+- SERVFAIL and refused responses are not cached.
+
+## Storage
+
+### Database
+
+SQLite with WAL mode, opened via `mcdsl/db.Open`. Single database file
+at the configured path (default `/srv/mcns/mcns.db`).
+
+### Schema
+
+```sql
+-- Migration 1: zones and records
+
+CREATE TABLE zones (
+    id          INTEGER PRIMARY KEY,
+    name        TEXT NOT NULL UNIQUE,
+    primary_ns  TEXT NOT NULL,
+    admin_email TEXT NOT NULL,
+    refresh     INTEGER NOT NULL DEFAULT 3600,
+    retry       INTEGER NOT NULL DEFAULT 600,
+    expire      INTEGER NOT NULL DEFAULT 86400,
+    minimum_ttl INTEGER NOT NULL DEFAULT 300,
+    serial      INTEGER NOT NULL DEFAULT 0,
+    created_at  TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    updated_at  TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
+);
+
+CREATE TABLE records (
+    id         INTEGER PRIMARY KEY,
+    zone_id    INTEGER NOT NULL REFERENCES zones(id) ON DELETE CASCADE,
+    name       TEXT NOT NULL,
+    type       TEXT NOT NULL CHECK (type IN ('A', 'AAAA', 'CNAME')),
+    value      TEXT NOT NULL,
+    ttl        INTEGER NOT NULL DEFAULT 300,
+    created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    UNIQUE(zone_id, name, type, value)
+);
+
+CREATE INDEX idx_records_zone_name ON records(zone_id, name);
+```
+
+### Constraints
+
+- Zone names are stored without trailing dot, lowercased.
+- Record names are relative to the zone (e.g., `metacrypt` not
+  `metacrypt.svc.mcp.metacircular.net`). The special name `@` refers
+  to the zone apex.
+- CNAME exclusivity: inserting a CNAME for a name that already has A/AAAA
+  records (or vice versa) is rejected. Enforced in application logic
+  within the transaction.
+- A record's value must be a valid IPv4 address. AAAA must be valid IPv6.
+  CNAME must be a valid domain name ending with a dot.
+
+## Authentication and Authorization
+
+Authentication is delegated to MCIAS via `mcdsl/auth`. The DNS server
+(port 53) has no authentication — it serves DNS to any client, as is
+standard for DNS.
+
+The management API (REST + gRPC) uses MCIAS bearer tokens:
+
+| Role | Permissions |
+|------|-------------|
+| admin | Full access: create/update/delete zones and records |
+| user | Read-only: list and get zones and records |
+| guest | Read-only: list and get zones and records |
+
+### gRPC Interceptor Maps
+
+| Map | Methods |
+|-----|---------|
+| Public | `Health` |
+| AuthRequired | `ListZones`, `GetZone`, `ListRecords`, `GetRecord` |
+| AdminRequired | `CreateZone`, `UpdateZone`, `DeleteZone`, `CreateRecord`, `UpdateRecord`, `DeleteRecord` |
+
+## API Surface
+
+### REST Endpoints
+
+| Method | Path | Auth | Description |
+|--------|------|------|-------------|
+| POST | `/v1/auth/login` | None | Login via MCIAS |
+| POST | `/v1/auth/logout` | Bearer | Logout |
+| GET | `/v1/health` | None | Health check |
+| GET | `/v1/zones` | Bearer | List all zones |
+| POST | `/v1/zones` | Admin | Create a zone |
+| GET | `/v1/zones/{zone}` | Bearer | Get zone details |
+| PUT | `/v1/zones/{zone}` | Admin | Update zone SOA parameters |
+| DELETE | `/v1/zones/{zone}` | Admin | Delete zone and all its records |
+| GET | `/v1/zones/{zone}/records` | Bearer | List records in a zone |
+| POST | `/v1/zones/{zone}/records` | Admin | Create a record |
+| GET | `/v1/zones/{zone}/records/{id}` | Bearer | Get a record |
+| PUT | `/v1/zones/{zone}/records/{id}` | Admin | Update a record |
+| DELETE | `/v1/zones/{zone}/records/{id}` | Admin | Delete a record |
+
+### gRPC Services
+
+```protobuf
+service AuthService {
+  rpc Login(LoginRequest) returns (LoginResponse);
+  rpc Logout(LogoutRequest) returns (LogoutResponse);
+}
+
+service ZoneService {
+  rpc ListZones(ListZonesRequest) returns (ListZonesResponse);
+  rpc CreateZone(CreateZoneRequest) returns (Zone);
+  rpc GetZone(GetZoneRequest) returns (Zone);
+  rpc UpdateZone(UpdateZoneRequest) returns (Zone);
+  rpc DeleteZone(DeleteZoneRequest) returns (DeleteZoneResponse);
+}
+
+service RecordService {
+  rpc ListRecords(ListRecordsRequest) returns (ListRecordsResponse);
+  rpc CreateRecord(CreateRecordRequest) returns (Record);
+  rpc GetRecord(GetRecordRequest) returns (Record);
+  rpc UpdateRecord(UpdateRecordRequest) returns (Record);
+  rpc DeleteRecord(DeleteRecordRequest) returns (DeleteRecordResponse);
+}
+
+service AdminService {
+  rpc Health(HealthRequest) returns (HealthResponse);
+}
+```
+
+### Request/Response Examples
+
+**Create Zone:**
+```json
+POST /v1/zones
+{
+  "name": "svc.mcp.metacircular.net",
+  "primary_ns": "ns.mcp.metacircular.net.",
+  "admin_email": "admin.metacircular.net."
+}
+
+Response 201:
+{
+  "id": 1,
+  "name": "svc.mcp.metacircular.net",
+  "primary_ns": "ns.mcp.metacircular.net.",
+  "admin_email": "admin.metacircular.net.",
+  "refresh": 3600,
+  "retry": 600,
+  "expire": 86400,
+  "minimum_ttl": 300,
+  "serial": 2026032601,
+  "created_at": "2026-03-26T20:00:00Z",
+  "updated_at": "2026-03-26T20:00:00Z"
+}
+```
+
+**Create Record:**
+```json
+POST /v1/zones/svc.mcp.metacircular.net/records
+{
+  "name": "metacrypt",
+  "type": "A",
+  "value": "192.168.88.181",
+  "ttl": 300
+}
+
+Response 201:
+{
+  "id": 1,
+  "zone": "svc.mcp.metacircular.net",
+  "name": "metacrypt",
+  "type": "A",
+  "value": "192.168.88.181",
+  "ttl": 300,
+  "created_at": "2026-03-26T20:00:00Z",
+  "updated_at": "2026-03-26T20:00:00Z"
+}
+```
+
+**Error Response:**
+```json
+{
+  "error": "CNAME record conflicts with existing A record for 'metacrypt'"
+}
+```
+
+## Configuration
+
+```toml
+[server]
+listen_addr = ":8443"
+grpc_addr   = ":9443"
+tls_cert    = "/srv/mcns/certs/cert.pem"
+tls_key     = "/srv/mcns/certs/key.pem"
+
+[database]
+path = "/srv/mcns/mcns.db"
+
+[dns]
+listen_addr = ":53"
+upstreams   = ["1.1.1.1:53", "8.8.8.8:53"]
+
+[mcias]
+server_url   = "https://svc.metacircular.net:8443"
+ca_cert      = ""
+service_name = "mcns"
+tags         = []
+
+[log]
+level = "info"
+```
+
+### DNS-Specific Configuration
+
+| Field | Required | Default | Description |
+|-------|----------|---------|-------------|
+| `dns.listen_addr` | No | `:53` | UDP+TCP listen address |
+| `dns.upstreams` | No | `["1.1.1.1:53", "8.8.8.8:53"]` | Upstream forwarders |
+
+## CLI Commands
+
+| Command | Purpose |
+|---------|---------|
+| `mcns server` | Start the DNS + API servers |
+| `mcns snapshot` | Create a database backup |
+| `mcns status` | Query a running instance's health |
+
+## Deployment
+
+### Container
+
+Single Dockerfile, single binary. The container exposes:
+
+- Port 53 (UDP+TCP) — DNS
+- Port 8443 (TCP) — REST API
+- Port 9443 (TCP) — gRPC API
+
+```dockerfile
+FROM golang:1.25-alpine AS builder
+# ... build with CGO_ENABLED=0 ...
+
+FROM alpine:3.21
+RUN addgroup -S mcns && adduser -S mcns -G mcns
+COPY --from=builder /build/mcns /usr/local/bin/mcns
+USER mcns
+EXPOSE 53/udp 53/tcp 8443 9443
+ENTRYPOINT ["mcns", "server"]
+```
+
+### Docker Compose (rift)
+
+```yaml
+services:
+  mcns:
+    image: mcr.svc.mcp.metacircular.net:8443/mcns:latest
+    container_name: mcns
+    restart: unless-stopped
+    command: ["server", "--config", "/srv/mcns/mcns.toml"]
+    ports:
+      - "192.168.88.181:53:53/udp"
+      - "192.168.88.181:53:53/tcp"
+      - "100.95.252.120:53:53/udp"
+      - "100.95.252.120:53:53/tcp"
+    volumes:
+      - /srv/mcns:/srv/mcns
+```
+
+The API ports (8443/9443) are fronted by MC-Proxy, not exposed directly.
+
+### Data Directory
+
+```
+/srv/mcns/
+├── mcns.toml         Configuration
+├── mcns.db           SQLite database
+├── certs/            TLS certificates
+└── backups/          Database snapshots
+```
+
+## Security Model
+
+### Threat Mitigations
+
+| Threat | Mitigation |
+|--------|------------|
+| DNS cache poisoning | Forwarded responses validated by upstream; TXID randomized by miekg/dns |
+| DNS amplification | Response rate limiting (future); TCP fallback for large responses |
+| Unauthorized record modification | Admin-only writes via MCIAS-authenticated API |
+| SQL injection | Parameterized queries throughout |
+| Zone enumeration via API | Requires authentication (user or admin role) |
+
+### Security Invariants
+
+1. DNS port 53 serves read-only data. No mutations possible via DNS protocol.
+2. All record mutations require admin authentication through MCIAS.
+3. CNAME exclusivity is enforced transactionally — no name can have both
+   CNAME and address records.
+4. Zone serial numbers are monotonically increasing — rollback is not possible.
+5. TLS 1.3 minimum on management API (enforced by mcdsl/httpserver).
+
+## Future Work
+
+- **MX, TXT, SRV records** — additional record types as needed.
+- **DNSSEC** — zone signing for authoritative responses.
+- **Zone transfer (AXFR/IXFR)** — for secondary DNS servers.
+- **MCP integration** — MCP agent automatically registers service records.
+- **Web UI** — htmx interface for zone and record management.
+- **Rate limiting** — DNS query rate limiting to mitigate amplification.
+- **Metrics** — Prometheus endpoint for query rates, cache hit ratio, latency.

CLAUDE.md

@@ -2,46 +2,70 @@
 
 ## Overview
 
-MCNS precursor — a CoreDNS instance serving internal DNS zones for the
+MCNS (Metacircular Networking Service) is an authoritative DNS server for
-Metacircular platform until the full MCNS service is built.
+the Metacircular platform. It serves DNS zones from SQLite, forwards
+non-authoritative queries to upstream resolvers, and exposes a gRPC/REST
+management API authenticated through MCIAS.
 
-## Zones
+## Build Commands
-
-| Zone | Purpose |
-|------|---------|
-| `svc.mcp.metacircular.net` | Internal service addresses (e.g. `metacrypt.svc.mcp.metacircular.net`) |
-| `mcp.metacircular.net` | Node addresses (e.g. `rift.mcp.metacircular.net`) |
-
-Everything else forwards to 1.1.1.1 and 8.8.8.8.
-
-## Files
-
-- `Corefile` — CoreDNS configuration
-- `zones/` — Zone files (manually maintained until MCP manages them)
-- `deploy/docker/docker-compose-rift.yml` — Docker compose for rift deployment
-
-## Operations
 
 ```bash
-# Start
+make all         # vet → lint → test → build
-docker compose -f deploy/docker/docker-compose-rift.yml up -d
+make build       # go build ./...
-
+make test        # go test ./...
-# Test resolution
+make vet         # go vet ./...
-dig @192.168.88.181 metacrypt.svc.mcp.metacircular.net
+make lint        # golangci-lint run ./...
-dig @192.168.88.181 rift.mcp.metacircular.net
+make proto       # regenerate gRPC code from .proto files
-
+make proto-lint  # buf lint + buf breaking
-# After editing zone files, bump the serial and restart
+make mcns        # build mcns binary with version injection
-docker compose -f deploy/docker/docker-compose-rift.yml restart
+make docker      # build container image
+make clean       # remove binaries
+make devserver   # build and run against srv/ config
 ```
 
-## Adding a service
+Run a single test: `go test ./internal/dns/ -run TestHandlerA`
 
-1. Add an A record to `zones/svc.mcp.metacircular.net.zone`
+## Architecture
-2. Bump the serial number (YYYYMMDDNN format)
-3. Restart CoreDNS
 
-## Adding a node
+Three listeners on one binary:
 
-1. Add an A record to `zones/mcp.metacircular.net.zone`
+- **DNS server** (`:53`, UDP+TCP) — serves authoritative zones from SQLite,
-2. Bump the serial number
+  forwards everything else to upstream resolvers. No authentication.
-3. Restart CoreDNS
+- **REST API** (`:8443`) — management API for zones and records. MCIAS auth.
+- **gRPC API** (`:9443`) — same management operations. MCIAS auth.
+
+Records stored in SQLite. Changes visible to DNS immediately on commit.
+
+## Project Structure
+
+```
+cmd/mcns/            CLI entry point (server, snapshot, status)
+internal/
+  config/            TOML config with DNS-specific sections
+  db/                SQLite schema, migrations, zone/record queries
+  dns/               DNS server, handler, forwarder, cache
+  server/            REST API routes and handlers
+  grpcserver/        gRPC server, interceptors, service handlers
+proto/mcns/v1/       Protobuf definitions
+gen/mcns/v1/         Generated Go code (do not edit)
+deploy/              Docker, systemd, install scripts, examples
+```
+
+## Ignored Directories
+
+- `srv/` — local dev runtime data
+- `gen/` — regenerated from proto, not hand-edited
+
+## Critical Rules
+
+1. **REST/gRPC sync**: Every REST endpoint must have a corresponding gRPC
+   RPC, updated in the same change.
+2. **gRPC interceptor maps**: New RPCs must be added to the correct
+   interceptor map (Public, AuthRequired, AdminRequired). Forgetting this
+   is a security defect.
+3. **CNAME exclusivity**: A name cannot have both CNAME and A/AAAA records.
+   Enforced in the database layer within a transaction.
+4. **SOA serial**: Auto-incremented on every record mutation. Never manually
+   set or decremented.
+5. **DNS has no auth**: Port 53 serves records to any client. All mutations
+   go through the authenticated management API.

Corefile

@@ -1,20 +0,0 @@
-# Internal zone for Metacircular service discovery.
-# Authoritative for svc.mcp.metacircular.net and mcp.metacircular.net.
-# Everything else forwards to public resolvers.
-
-svc.mcp.metacircular.net {
-    file /etc/coredns/zones/svc.mcp.metacircular.net.zone
-    log
-}
-
-mcp.metacircular.net {
-    file /etc/coredns/zones/mcp.metacircular.net.zone
-    log
-}
-
-. {
-    forward . 1.1.1.1 8.8.8.8
-    cache 30
-    log
-    errors
-}

Dockerfile

@@ -0,0 +1,23 @@
+FROM golang:1.25-alpine AS builder
+
+ARG VERSION=dev
+
+RUN apk add --no-cache git
+
+WORKDIR /build
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w -X main.version=${VERSION}" -o mcns ./cmd/mcns
+
+FROM alpine:3.21
+
+RUN addgroup -S mcns && adduser -S mcns -G mcns
+COPY --from=builder /build/mcns /usr/local/bin/mcns
+
+USER mcns
+EXPOSE 53/udp 53/tcp 8443 9443
+
+ENTRYPOINT ["mcns"]
+CMD ["server", "--config", "/srv/mcns/mcns.toml"]

Makefile

@@ -0,0 +1,40 @@
+.PHONY: build test vet lint proto proto-lint clean docker all devserver
+
+LDFLAGS := -trimpath -ldflags="-s -w -X main.version=$(shell git describe --tags --always --dirty)"
+
+mcns:
+	CGO_ENABLED=0 go build $(LDFLAGS) -o mcns ./cmd/mcns
+
+build:
+	go build ./...
+
+test:
+	go test ./...
+
+vet:
+	go vet ./...
+
+lint:
+	golangci-lint run ./...
+
+proto:
+	protoc --go_out=. --go_opt=module=git.wntrmute.dev/kyle/mcns \
+		--go-grpc_out=. --go-grpc_opt=module=git.wntrmute.dev/kyle/mcns \
+		proto/mcns/v1/*.proto
+
+proto-lint:
+	buf lint
+	buf breaking --against '.git#branch=master,subdir=proto'
+
+clean:
+	rm -f mcns
+
+docker:
+	docker build --build-arg VERSION=$(shell git describe --tags --always --dirty) -t mcns -f Dockerfile .
+
+devserver: mcns
+	@mkdir -p srv
+	@if [ ! -f srv/mcns.toml ]; then cp deploy/examples/mcns.toml srv/mcns.toml; echo "Created srv/mcns.toml from example — edit before running."; fi
+	./mcns server --config srv/mcns.toml
+
+all: vet lint test mcns

buf.yaml

@@ -0,0 +1,9 @@
+version: v2
+modules:
+  - path: proto
+lint:
+  use:
+    - STANDARD
+breaking:
+  use:
+    - FILE

cmd/mcns/main.go

@@ -0,0 +1,278 @@
+package main
+
+import (
+	"context"
+	"crypto/tls"
+	"crypto/x509"
+	"fmt"
+	"log/slog"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"path/filepath"
+	"syscall"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+	mcdsldb "git.wntrmute.dev/kyle/mcdsl/db"
+
+	"git.wntrmute.dev/kyle/mcns/internal/config"
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+	mcnsdns "git.wntrmute.dev/kyle/mcns/internal/dns"
+	"git.wntrmute.dev/kyle/mcns/internal/grpcserver"
+	"git.wntrmute.dev/kyle/mcns/internal/server"
+)
+
+var version = "dev"
+
+func main() {
+	root := &cobra.Command{
+		Use:     "mcns",
+		Short:   "Metacircular Networking Service",
+		Version: version,
+	}
+
+	root.AddCommand(serverCmd())
+	root.AddCommand(statusCmd())
+	root.AddCommand(snapshotCmd())
+
+	if err := root.Execute(); err != nil {
+		os.Exit(1)
+	}
+}
+
+func serverCmd() *cobra.Command {
+	var configPath string
+
+	cmd := &cobra.Command{
+		Use:   "server",
+		Short: "Start the DNS and API servers",
+		RunE: func(_ *cobra.Command, _ []string) error {
+			return runServer(configPath)
+		},
+	}
+
+	cmd.Flags().StringVarP(&configPath, "config", "c", "mcns.toml", "path to configuration file")
+	return cmd
+}
+
+func runServer(configPath string) error {
+	cfg, err := config.Load(configPath)
+	if err != nil {
+		return fmt.Errorf("load config: %w", err)
+	}
+
+	logger := slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
+		Level: parseLogLevel(cfg.Log.Level),
+	}))
+
+	// Open and migrate the database.
+	database, err := db.Open(cfg.Database.Path)
+	if err != nil {
+		return fmt.Errorf("open database: %w", err)
+	}
+	defer database.Close()
+
+	if err := database.Migrate(); err != nil {
+		return fmt.Errorf("migrate database: %w", err)
+	}
+
+	// Create auth client for MCIAS integration.
+	authClient, err := mcdslauth.New(mcdslauth.Config{
+		ServerURL:   cfg.MCIAS.ServerURL,
+		CACert:      cfg.MCIAS.CACert,
+		ServiceName: cfg.MCIAS.ServiceName,
+		Tags:        cfg.MCIAS.Tags,
+	}, logger)
+	if err != nil {
+		return fmt.Errorf("create auth client: %w", err)
+	}
+
+	// Start DNS server.
+	dnsServer := mcnsdns.New(database, cfg.DNS.Upstreams, logger)
+
+	// Build REST API router.
+	router := server.NewRouter(server.Deps{
+		DB:     database,
+		Auth:   authClient,
+		Logger: logger,
+	})
+
+	// TLS configuration.
+	cert, err := tls.LoadX509KeyPair(cfg.Server.TLSCert, cfg.Server.TLSKey)
+	if err != nil {
+		return fmt.Errorf("load TLS cert: %w", err)
+	}
+	tlsCfg := &tls.Config{
+		MinVersion:   tls.VersionTLS13,
+		Certificates: []tls.Certificate{cert},
+	}
+
+	// HTTP server.
+	httpServer := &http.Server{
+		Addr:         cfg.Server.ListenAddr,
+		Handler:      router,
+		TLSConfig:    tlsCfg,
+		ReadTimeout:  cfg.Server.ReadTimeout.Duration,
+		WriteTimeout: cfg.Server.WriteTimeout.Duration,
+		IdleTimeout:  cfg.Server.IdleTimeout.Duration,
+	}
+
+	// Start gRPC server if configured.
+	var grpcSrv *grpcserver.Server
+	var grpcLis net.Listener
+	if cfg.Server.GRPCAddr != "" {
+		grpcSrv, err = grpcserver.New(cfg.Server.TLSCert, cfg.Server.TLSKey, grpcserver.Deps{
+			DB:            database,
+			Authenticator: authClient,
+		}, logger)
+		if err != nil {
+			return fmt.Errorf("create gRPC server: %w", err)
+		}
+		grpcLis, err = net.Listen("tcp", cfg.Server.GRPCAddr)
+		if err != nil {
+			return fmt.Errorf("listen gRPC on %s: %w", cfg.Server.GRPCAddr, err)
+		}
+	}
+
+	// Graceful shutdown on SIGINT/SIGTERM.
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	errCh := make(chan error, 3)
+
+	// Start DNS server.
+	go func() {
+		errCh <- dnsServer.ListenAndServe(cfg.DNS.ListenAddr)
+	}()
+
+	// Start gRPC server.
+	if grpcSrv != nil {
+		go func() {
+			logger.Info("gRPC server listening", "addr", grpcLis.Addr())
+			errCh <- grpcSrv.Serve(grpcLis)
+		}()
+	}
+
+	// Start HTTP server.
+	go func() {
+		logger.Info("mcns starting",
+			"version", version,
+			"addr", cfg.Server.ListenAddr,
+			"dns_addr", cfg.DNS.ListenAddr,
+		)
+		errCh <- httpServer.ListenAndServeTLS("", "")
+	}()
+
+	select {
+	case err := <-errCh:
+		return fmt.Errorf("server error: %w", err)
+	case <-ctx.Done():
+		logger.Info("shutting down")
+		dnsServer.Shutdown()
+		if grpcSrv != nil {
+			grpcSrv.GracefulStop()
+		}
+		shutdownTimeout := 30 * time.Second
+		if cfg.Server.ShutdownTimeout.Duration > 0 {
+			shutdownTimeout = cfg.Server.ShutdownTimeout.Duration
+		}
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), shutdownTimeout)
+		defer cancel()
+		if err := httpServer.Shutdown(shutdownCtx); err != nil {
+			return fmt.Errorf("shutdown: %w", err)
+		}
+		logger.Info("mcns stopped")
+		return nil
+	}
+}
+
+func statusCmd() *cobra.Command {
+	var addr, caCert string
+
+	cmd := &cobra.Command{
+		Use:   "status",
+		Short: "Check MCNS health",
+		RunE: func(_ *cobra.Command, _ []string) error {
+			tlsCfg := &tls.Config{MinVersion: tls.VersionTLS13}
+			if caCert != "" {
+				pemData, err := os.ReadFile(caCert)
+				if err != nil {
+					return fmt.Errorf("read CA cert: %w", err)
+				}
+				pool := x509.NewCertPool()
+				if !pool.AppendCertsFromPEM(pemData) {
+					return fmt.Errorf("no valid certificates in %s", caCert)
+				}
+				tlsCfg.RootCAs = pool
+			}
+			client := &http.Client{
+				Transport: &http.Transport{TLSClientConfig: tlsCfg},
+				Timeout:   5 * time.Second,
+			}
+			resp, err := client.Get(addr + "/v1/health")
+			if err != nil {
+				return fmt.Errorf("health check: %w", err)
+			}
+			defer resp.Body.Close()
+			if resp.StatusCode != http.StatusOK {
+				return fmt.Errorf("health check: status %d", resp.StatusCode)
+			}
+			fmt.Println("ok")
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVar(&addr, "addr", "https://localhost:8443", "server address")
+	cmd.Flags().StringVar(&caCert, "ca-cert", "", "CA certificate for TLS verification")
+	return cmd
+}
+
+func snapshotCmd() *cobra.Command {
+	var configPath string
+
+	cmd := &cobra.Command{
+		Use:   "snapshot",
+		Short: "Database backup via VACUUM INTO",
+		RunE: func(_ *cobra.Command, _ []string) error {
+			cfg, err := config.Load(configPath)
+			if err != nil {
+				return fmt.Errorf("load config: %w", err)
+			}
+			database, err := db.Open(cfg.Database.Path)
+			if err != nil {
+				return fmt.Errorf("open database: %w", err)
+			}
+			defer database.Close()
+
+			backupDir := filepath.Join(filepath.Dir(cfg.Database.Path), "backups")
+			snapName := fmt.Sprintf("mcns-%s.db", time.Now().Format("20060102-150405"))
+			snapPath := filepath.Join(backupDir, snapName)
+
+			if err := mcdsldb.Snapshot(database.DB, snapPath); err != nil {
+				return fmt.Errorf("snapshot: %w", err)
+			}
+			fmt.Printf("Snapshot saved to %s\n", snapPath)
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVarP(&configPath, "config", "c", "mcns.toml", "path to configuration file")
+	return cmd
+}
+
+func parseLogLevel(s string) slog.Level {
+	switch s {
+	case "debug":
+		return slog.LevelDebug
+	case "warn":
+		return slog.LevelWarn
+	case "error":
+		return slog.LevelError
+	default:
+		return slog.LevelInfo
+	}
+}

deploy/docker/docker-compose-rift.yml

@@ -1,25 +1,18 @@
-# CoreDNS on rift — MCNS precursor.
+# MCNS on rift — authoritative DNS + management API.
-#
-# Serves the svc.mcp.metacircular.net and mcp.metacircular.net zones.
-# Forwards everything else to 1.1.1.1 and 8.8.8.8.
 #
 # Usage:
 #   docker compose -f deploy/docker/docker-compose-rift.yml up -d
-#
-# To use as the network's DNS server, point clients or the router at
-# rift's IP (192.168.88.181) on port 53.
 
 services:
-  coredns:
+  mcns:
-    image: coredns/coredns:1.12.1
+    image: mcr.svc.mcp.metacircular.net:8443/mcns:latest
-    container_name: mcns-coredns
+    container_name: mcns
     restart: unless-stopped
-    command: -conf /etc/coredns/Corefile
+    command: ["server", "--config", "/srv/mcns/mcns.toml"]
     ports:
       - "192.168.88.181:53:53/udp"
       - "192.168.88.181:53:53/tcp"
       - "100.95.252.120:53:53/udp"
       - "100.95.252.120:53:53/tcp"
     volumes:
-      - ../../Corefile:/etc/coredns/Corefile:ro
+      - /srv/mcns:/srv/mcns
-      - ../../zones:/etc/coredns/zones:ro

deploy/examples/mcns.toml

@@ -0,0 +1,21 @@
+[server]
+listen_addr = ":8443"
+grpc_addr   = ":9443"
+tls_cert    = "/srv/mcns/certs/cert.pem"
+tls_key     = "/srv/mcns/certs/key.pem"
+
+[database]
+path = "/srv/mcns/mcns.db"
+
+[dns]
+listen_addr = ":53"
+upstreams   = ["1.1.1.1:53", "8.8.8.8:53"]
+
+[mcias]
+server_url   = "https://svc.metacircular.net:8443"
+ca_cert      = ""
+service_name = "mcns"
+tags         = []
+
+[log]
+level = "info"

gen/mcns/v1/admin.pb.go

@@ -0,0 +1,164 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.11
+// 	protoc        v6.32.1
+// source: proto/mcns/v1/admin.proto
+
+package mcnsv1
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type HealthRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *HealthRequest) Reset() {
+	*x = HealthRequest{}
+	mi := &file_proto_mcns_v1_admin_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *HealthRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HealthRequest) ProtoMessage() {}
+
+func (x *HealthRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_admin_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HealthRequest.ProtoReflect.Descriptor instead.
+func (*HealthRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_admin_proto_rawDescGZIP(), []int{0}
+}
+
+type HealthResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Status        string                 `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *HealthResponse) Reset() {
+	*x = HealthResponse{}
+	mi := &file_proto_mcns_v1_admin_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *HealthResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HealthResponse) ProtoMessage() {}
+
+func (x *HealthResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_admin_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HealthResponse.ProtoReflect.Descriptor instead.
+func (*HealthResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_admin_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *HealthResponse) GetStatus() string {
+	if x != nil {
+		return x.Status
+	}
+	return ""
+}
+
+var File_proto_mcns_v1_admin_proto protoreflect.FileDescriptor
+
+const file_proto_mcns_v1_admin_proto_rawDesc = "" +
+	"\n" +
+	"\x19proto/mcns/v1/admin.proto\x12\amcns.v1\"\x0f\n" +
+	"\rHealthRequest\"(\n" +
+	"\x0eHealthResponse\x12\x16\n" +
+	"\x06status\x18\x01 \x01(\tR\x06status2I\n" +
+	"\fAdminService\x129\n" +
+	"\x06Health\x12\x16.mcns.v1.HealthRequest\x1a\x17.mcns.v1.HealthResponseB/Z-git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1b\x06proto3"
+
+var (
+	file_proto_mcns_v1_admin_proto_rawDescOnce sync.Once
+	file_proto_mcns_v1_admin_proto_rawDescData []byte
+)
+
+func file_proto_mcns_v1_admin_proto_rawDescGZIP() []byte {
+	file_proto_mcns_v1_admin_proto_rawDescOnce.Do(func() {
+		file_proto_mcns_v1_admin_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_admin_proto_rawDesc), len(file_proto_mcns_v1_admin_proto_rawDesc)))
+	})
+	return file_proto_mcns_v1_admin_proto_rawDescData
+}
+
+var file_proto_mcns_v1_admin_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_proto_mcns_v1_admin_proto_goTypes = []any{
+	(*HealthRequest)(nil),  // 0: mcns.v1.HealthRequest
+	(*HealthResponse)(nil), // 1: mcns.v1.HealthResponse
+}
+var file_proto_mcns_v1_admin_proto_depIdxs = []int32{
+	0, // 0: mcns.v1.AdminService.Health:input_type -> mcns.v1.HealthRequest
+	1, // 1: mcns.v1.AdminService.Health:output_type -> mcns.v1.HealthResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_proto_mcns_v1_admin_proto_init() }
+func file_proto_mcns_v1_admin_proto_init() {
+	if File_proto_mcns_v1_admin_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_admin_proto_rawDesc), len(file_proto_mcns_v1_admin_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_mcns_v1_admin_proto_goTypes,
+		DependencyIndexes: file_proto_mcns_v1_admin_proto_depIdxs,
+		MessageInfos:      file_proto_mcns_v1_admin_proto_msgTypes,
+	}.Build()
+	File_proto_mcns_v1_admin_proto = out.File
+	file_proto_mcns_v1_admin_proto_goTypes = nil
+	file_proto_mcns_v1_admin_proto_depIdxs = nil
+}

gen/mcns/v1/admin_grpc.pb.go

@@ -0,0 +1,125 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.6.1
+// - protoc             v6.32.1
+// source: proto/mcns/v1/admin.proto
+
+package mcnsv1
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	AdminService_Health_FullMethodName = "/mcns.v1.AdminService/Health"
+)
+
+// AdminServiceClient is the client API for AdminService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+//
+// AdminService exposes server health and administrative operations.
+type AdminServiceClient interface {
+	Health(ctx context.Context, in *HealthRequest, opts ...grpc.CallOption) (*HealthResponse, error)
+}
+
+type adminServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewAdminServiceClient(cc grpc.ClientConnInterface) AdminServiceClient {
+	return &adminServiceClient{cc}
+}
+
+func (c *adminServiceClient) Health(ctx context.Context, in *HealthRequest, opts ...grpc.CallOption) (*HealthResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(HealthResponse)
+	err := c.cc.Invoke(ctx, AdminService_Health_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// AdminServiceServer is the server API for AdminService service.
+// All implementations must embed UnimplementedAdminServiceServer
+// for forward compatibility.
+//
+// AdminService exposes server health and administrative operations.
+type AdminServiceServer interface {
+	Health(context.Context, *HealthRequest) (*HealthResponse, error)
+	mustEmbedUnimplementedAdminServiceServer()
+}
+
+// UnimplementedAdminServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedAdminServiceServer struct{}
+
+func (UnimplementedAdminServiceServer) Health(context.Context, *HealthRequest) (*HealthResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method Health not implemented")
+}
+func (UnimplementedAdminServiceServer) mustEmbedUnimplementedAdminServiceServer() {}
+func (UnimplementedAdminServiceServer) testEmbeddedByValue()                      {}
+
+// UnsafeAdminServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to AdminServiceServer will
+// result in compilation errors.
+type UnsafeAdminServiceServer interface {
+	mustEmbedUnimplementedAdminServiceServer()
+}
+
+func RegisterAdminServiceServer(s grpc.ServiceRegistrar, srv AdminServiceServer) {
+	// If the following call panics, it indicates UnimplementedAdminServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&AdminService_ServiceDesc, srv)
+}
+
+func _AdminService_Health_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(HealthRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AdminServiceServer).Health(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AdminService_Health_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AdminServiceServer).Health(ctx, req.(*HealthRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// AdminService_ServiceDesc is the grpc.ServiceDesc for AdminService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var AdminService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "mcns.v1.AdminService",
+	HandlerType: (*AdminServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Health",
+			Handler:    _AdminService_Health_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "proto/mcns/v1/admin.proto",
+}

gen/mcns/v1/auth.pb.go

@@ -0,0 +1,280 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.11
+// 	protoc        v6.32.1
+// source: proto/mcns/v1/auth.proto
+
+package mcnsv1
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type LoginRequest struct {
+	state    protoimpl.MessageState `protogen:"open.v1"`
+	Username string                 `protobuf:"bytes,1,opt,name=username,proto3" json:"username,omitempty"`
+	Password string                 `protobuf:"bytes,2,opt,name=password,proto3" json:"password,omitempty"`
+	// TOTP code for two-factor authentication, if enabled on the account.
+	TotpCode      string `protobuf:"bytes,3,opt,name=totp_code,json=totpCode,proto3" json:"totp_code,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *LoginRequest) Reset() {
+	*x = LoginRequest{}
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *LoginRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*LoginRequest) ProtoMessage() {}
+
+func (x *LoginRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use LoginRequest.ProtoReflect.Descriptor instead.
+func (*LoginRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_auth_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *LoginRequest) GetUsername() string {
+	if x != nil {
+		return x.Username
+	}
+	return ""
+}
+
+func (x *LoginRequest) GetPassword() string {
+	if x != nil {
+		return x.Password
+	}
+	return ""
+}
+
+func (x *LoginRequest) GetTotpCode() string {
+	if x != nil {
+		return x.TotpCode
+	}
+	return ""
+}
+
+type LoginResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Token         string                 `protobuf:"bytes,1,opt,name=token,proto3" json:"token,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *LoginResponse) Reset() {
+	*x = LoginResponse{}
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *LoginResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*LoginResponse) ProtoMessage() {}
+
+func (x *LoginResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use LoginResponse.ProtoReflect.Descriptor instead.
+func (*LoginResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_auth_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *LoginResponse) GetToken() string {
+	if x != nil {
+		return x.Token
+	}
+	return ""
+}
+
+type LogoutRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Token         string                 `protobuf:"bytes,1,opt,name=token,proto3" json:"token,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *LogoutRequest) Reset() {
+	*x = LogoutRequest{}
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *LogoutRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*LogoutRequest) ProtoMessage() {}
+
+func (x *LogoutRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use LogoutRequest.ProtoReflect.Descriptor instead.
+func (*LogoutRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_auth_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *LogoutRequest) GetToken() string {
+	if x != nil {
+		return x.Token
+	}
+	return ""
+}
+
+type LogoutResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *LogoutResponse) Reset() {
+	*x = LogoutResponse{}
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *LogoutResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*LogoutResponse) ProtoMessage() {}
+
+func (x *LogoutResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_auth_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use LogoutResponse.ProtoReflect.Descriptor instead.
+func (*LogoutResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_auth_proto_rawDescGZIP(), []int{3}
+}
+
+var File_proto_mcns_v1_auth_proto protoreflect.FileDescriptor
+
+const file_proto_mcns_v1_auth_proto_rawDesc = "" +
+	"\n" +
+	"\x18proto/mcns/v1/auth.proto\x12\amcns.v1\"c\n" +
+	"\fLoginRequest\x12\x1a\n" +
+	"\busername\x18\x01 \x01(\tR\busername\x12\x1a\n" +
+	"\bpassword\x18\x02 \x01(\tR\bpassword\x12\x1b\n" +
+	"\ttotp_code\x18\x03 \x01(\tR\btotpCode\"%\n" +
+	"\rLoginResponse\x12\x14\n" +
+	"\x05token\x18\x01 \x01(\tR\x05token\"%\n" +
+	"\rLogoutRequest\x12\x14\n" +
+	"\x05token\x18\x01 \x01(\tR\x05token\"\x10\n" +
+	"\x0eLogoutResponse2\x80\x01\n" +
+	"\vAuthService\x126\n" +
+	"\x05Login\x12\x15.mcns.v1.LoginRequest\x1a\x16.mcns.v1.LoginResponse\x129\n" +
+	"\x06Logout\x12\x16.mcns.v1.LogoutRequest\x1a\x17.mcns.v1.LogoutResponseB/Z-git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1b\x06proto3"
+
+var (
+	file_proto_mcns_v1_auth_proto_rawDescOnce sync.Once
+	file_proto_mcns_v1_auth_proto_rawDescData []byte
+)
+
+func file_proto_mcns_v1_auth_proto_rawDescGZIP() []byte {
+	file_proto_mcns_v1_auth_proto_rawDescOnce.Do(func() {
+		file_proto_mcns_v1_auth_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_auth_proto_rawDesc), len(file_proto_mcns_v1_auth_proto_rawDesc)))
+	})
+	return file_proto_mcns_v1_auth_proto_rawDescData
+}
+
+var file_proto_mcns_v1_auth_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_proto_mcns_v1_auth_proto_goTypes = []any{
+	(*LoginRequest)(nil),   // 0: mcns.v1.LoginRequest
+	(*LoginResponse)(nil),  // 1: mcns.v1.LoginResponse
+	(*LogoutRequest)(nil),  // 2: mcns.v1.LogoutRequest
+	(*LogoutResponse)(nil), // 3: mcns.v1.LogoutResponse
+}
+var file_proto_mcns_v1_auth_proto_depIdxs = []int32{
+	0, // 0: mcns.v1.AuthService.Login:input_type -> mcns.v1.LoginRequest
+	2, // 1: mcns.v1.AuthService.Logout:input_type -> mcns.v1.LogoutRequest
+	1, // 2: mcns.v1.AuthService.Login:output_type -> mcns.v1.LoginResponse
+	3, // 3: mcns.v1.AuthService.Logout:output_type -> mcns.v1.LogoutResponse
+	2, // [2:4] is the sub-list for method output_type
+	0, // [0:2] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_proto_mcns_v1_auth_proto_init() }
+func file_proto_mcns_v1_auth_proto_init() {
+	if File_proto_mcns_v1_auth_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_auth_proto_rawDesc), len(file_proto_mcns_v1_auth_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_mcns_v1_auth_proto_goTypes,
+		DependencyIndexes: file_proto_mcns_v1_auth_proto_depIdxs,
+		MessageInfos:      file_proto_mcns_v1_auth_proto_msgTypes,
+	}.Build()
+	File_proto_mcns_v1_auth_proto = out.File
+	file_proto_mcns_v1_auth_proto_goTypes = nil
+	file_proto_mcns_v1_auth_proto_depIdxs = nil
+}

gen/mcns/v1/auth_grpc.pb.go

@@ -0,0 +1,163 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.6.1
+// - protoc             v6.32.1
+// source: proto/mcns/v1/auth.proto
+
+package mcnsv1
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	AuthService_Login_FullMethodName  = "/mcns.v1.AuthService/Login"
+	AuthService_Logout_FullMethodName = "/mcns.v1.AuthService/Logout"
+)
+
+// AuthServiceClient is the client API for AuthService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+//
+// AuthService handles authentication by delegating to MCIAS.
+type AuthServiceClient interface {
+	Login(ctx context.Context, in *LoginRequest, opts ...grpc.CallOption) (*LoginResponse, error)
+	Logout(ctx context.Context, in *LogoutRequest, opts ...grpc.CallOption) (*LogoutResponse, error)
+}
+
+type authServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewAuthServiceClient(cc grpc.ClientConnInterface) AuthServiceClient {
+	return &authServiceClient{cc}
+}
+
+func (c *authServiceClient) Login(ctx context.Context, in *LoginRequest, opts ...grpc.CallOption) (*LoginResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(LoginResponse)
+	err := c.cc.Invoke(ctx, AuthService_Login_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *authServiceClient) Logout(ctx context.Context, in *LogoutRequest, opts ...grpc.CallOption) (*LogoutResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(LogoutResponse)
+	err := c.cc.Invoke(ctx, AuthService_Logout_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// AuthServiceServer is the server API for AuthService service.
+// All implementations must embed UnimplementedAuthServiceServer
+// for forward compatibility.
+//
+// AuthService handles authentication by delegating to MCIAS.
+type AuthServiceServer interface {
+	Login(context.Context, *LoginRequest) (*LoginResponse, error)
+	Logout(context.Context, *LogoutRequest) (*LogoutResponse, error)
+	mustEmbedUnimplementedAuthServiceServer()
+}
+
+// UnimplementedAuthServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedAuthServiceServer struct{}
+
+func (UnimplementedAuthServiceServer) Login(context.Context, *LoginRequest) (*LoginResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method Login not implemented")
+}
+func (UnimplementedAuthServiceServer) Logout(context.Context, *LogoutRequest) (*LogoutResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method Logout not implemented")
+}
+func (UnimplementedAuthServiceServer) mustEmbedUnimplementedAuthServiceServer() {}
+func (UnimplementedAuthServiceServer) testEmbeddedByValue()                     {}
+
+// UnsafeAuthServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to AuthServiceServer will
+// result in compilation errors.
+type UnsafeAuthServiceServer interface {
+	mustEmbedUnimplementedAuthServiceServer()
+}
+
+func RegisterAuthServiceServer(s grpc.ServiceRegistrar, srv AuthServiceServer) {
+	// If the following call panics, it indicates UnimplementedAuthServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&AuthService_ServiceDesc, srv)
+}
+
+func _AuthService_Login_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(LoginRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AuthServiceServer).Login(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AuthService_Login_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AuthServiceServer).Login(ctx, req.(*LoginRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _AuthService_Logout_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(LogoutRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(AuthServiceServer).Logout(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: AuthService_Logout_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(AuthServiceServer).Logout(ctx, req.(*LogoutRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// AuthService_ServiceDesc is the grpc.ServiceDesc for AuthService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var AuthService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "mcns.v1.AuthService",
+	HandlerType: (*AuthServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Login",
+			Handler:    _AuthService_Login_Handler,
+		},
+		{
+			MethodName: "Logout",
+			Handler:    _AuthService_Logout_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "proto/mcns/v1/auth.proto",
+}

gen/mcns/v1/record.pb.go

@@ -0,0 +1,623 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.11
+// 	protoc        v6.32.1
+// source: proto/mcns/v1/record.proto
+
+package mcnsv1
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Record struct {
+	state protoimpl.MessageState `protogen:"open.v1"`
+	Id    int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	// Zone name this record belongs to (e.g. "example.com.").
+	Zone string `protobuf:"bytes,2,opt,name=zone,proto3" json:"zone,omitempty"`
+	Name string `protobuf:"bytes,3,opt,name=name,proto3" json:"name,omitempty"`
+	// DNS record type (A, AAAA, CNAME, MX, TXT, etc.).
+	Type          string                 `protobuf:"bytes,4,opt,name=type,proto3" json:"type,omitempty"`
+	Value         string                 `protobuf:"bytes,5,opt,name=value,proto3" json:"value,omitempty"`
+	Ttl           int32                  `protobuf:"varint,6,opt,name=ttl,proto3" json:"ttl,omitempty"`
+	CreatedAt     *timestamppb.Timestamp `protobuf:"bytes,7,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"`
+	UpdatedAt     *timestamppb.Timestamp `protobuf:"bytes,8,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *Record) Reset() {
+	*x = Record{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Record) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Record) ProtoMessage() {}
+
+func (x *Record) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Record.ProtoReflect.Descriptor instead.
+func (*Record) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Record) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *Record) GetZone() string {
+	if x != nil {
+		return x.Zone
+	}
+	return ""
+}
+
+func (x *Record) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *Record) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *Record) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *Record) GetTtl() int32 {
+	if x != nil {
+		return x.Ttl
+	}
+	return 0
+}
+
+func (x *Record) GetCreatedAt() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreatedAt
+	}
+	return nil
+}
+
+func (x *Record) GetUpdatedAt() *timestamppb.Timestamp {
+	if x != nil {
+		return x.UpdatedAt
+	}
+	return nil
+}
+
+type ListRecordsRequest struct {
+	state protoimpl.MessageState `protogen:"open.v1"`
+	Zone  string                 `protobuf:"bytes,1,opt,name=zone,proto3" json:"zone,omitempty"`
+	// Optional filter by record name.
+	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	// Optional filter by record type (A, AAAA, CNAME, etc.).
+	Type          string `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListRecordsRequest) Reset() {
+	*x = ListRecordsRequest{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListRecordsRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListRecordsRequest) ProtoMessage() {}
+
+func (x *ListRecordsRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListRecordsRequest.ProtoReflect.Descriptor instead.
+func (*ListRecordsRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *ListRecordsRequest) GetZone() string {
+	if x != nil {
+		return x.Zone
+	}
+	return ""
+}
+
+func (x *ListRecordsRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *ListRecordsRequest) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+type ListRecordsResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Records       []*Record              `protobuf:"bytes,1,rep,name=records,proto3" json:"records,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListRecordsResponse) Reset() {
+	*x = ListRecordsResponse{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListRecordsResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListRecordsResponse) ProtoMessage() {}
+
+func (x *ListRecordsResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListRecordsResponse.ProtoReflect.Descriptor instead.
+func (*ListRecordsResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *ListRecordsResponse) GetRecords() []*Record {
+	if x != nil {
+		return x.Records
+	}
+	return nil
+}
+
+type CreateRecordRequest struct {
+	state protoimpl.MessageState `protogen:"open.v1"`
+	// Zone name the record will be created in; must reference an existing zone.
+	Zone          string `protobuf:"bytes,1,opt,name=zone,proto3" json:"zone,omitempty"`
+	Name          string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	Type          string `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
+	Value         string `protobuf:"bytes,4,opt,name=value,proto3" json:"value,omitempty"`
+	Ttl           int32  `protobuf:"varint,5,opt,name=ttl,proto3" json:"ttl,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *CreateRecordRequest) Reset() {
+	*x = CreateRecordRequest{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *CreateRecordRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateRecordRequest) ProtoMessage() {}
+
+func (x *CreateRecordRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreateRecordRequest.ProtoReflect.Descriptor instead.
+func (*CreateRecordRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *CreateRecordRequest) GetZone() string {
+	if x != nil {
+		return x.Zone
+	}
+	return ""
+}
+
+func (x *CreateRecordRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *CreateRecordRequest) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *CreateRecordRequest) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *CreateRecordRequest) GetTtl() int32 {
+	if x != nil {
+		return x.Ttl
+	}
+	return 0
+}
+
+type GetRecordRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GetRecordRequest) Reset() {
+	*x = GetRecordRequest{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetRecordRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetRecordRequest) ProtoMessage() {}
+
+func (x *GetRecordRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetRecordRequest.ProtoReflect.Descriptor instead.
+func (*GetRecordRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *GetRecordRequest) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+type UpdateRecordRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Name          string                 `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	Type          string                 `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
+	Value         string                 `protobuf:"bytes,4,opt,name=value,proto3" json:"value,omitempty"`
+	Ttl           int32                  `protobuf:"varint,5,opt,name=ttl,proto3" json:"ttl,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *UpdateRecordRequest) Reset() {
+	*x = UpdateRecordRequest{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *UpdateRecordRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UpdateRecordRequest) ProtoMessage() {}
+
+func (x *UpdateRecordRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UpdateRecordRequest.ProtoReflect.Descriptor instead.
+func (*UpdateRecordRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *UpdateRecordRequest) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *UpdateRecordRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *UpdateRecordRequest) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *UpdateRecordRequest) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *UpdateRecordRequest) GetTtl() int32 {
+	if x != nil {
+		return x.Ttl
+	}
+	return 0
+}
+
+type DeleteRecordRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *DeleteRecordRequest) Reset() {
+	*x = DeleteRecordRequest{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[6]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *DeleteRecordRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DeleteRecordRequest) ProtoMessage() {}
+
+func (x *DeleteRecordRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[6]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DeleteRecordRequest.ProtoReflect.Descriptor instead.
+func (*DeleteRecordRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *DeleteRecordRequest) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+type DeleteRecordResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *DeleteRecordResponse) Reset() {
+	*x = DeleteRecordResponse{}
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[7]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *DeleteRecordResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DeleteRecordResponse) ProtoMessage() {}
+
+func (x *DeleteRecordResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_record_proto_msgTypes[7]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DeleteRecordResponse.ProtoReflect.Descriptor instead.
+func (*DeleteRecordResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_record_proto_rawDescGZIP(), []int{7}
+}
+
+var File_proto_mcns_v1_record_proto protoreflect.FileDescriptor
+
+const file_proto_mcns_v1_record_proto_rawDesc = "" +
+	"\n" +
+	"\x1aproto/mcns/v1/record.proto\x12\amcns.v1\x1a\x1fgoogle/protobuf/timestamp.proto\"\xf2\x01\n" +
+	"\x06Record\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\x12\x12\n" +
+	"\x04zone\x18\x02 \x01(\tR\x04zone\x12\x12\n" +
+	"\x04name\x18\x03 \x01(\tR\x04name\x12\x12\n" +
+	"\x04type\x18\x04 \x01(\tR\x04type\x12\x14\n" +
+	"\x05value\x18\x05 \x01(\tR\x05value\x12\x10\n" +
+	"\x03ttl\x18\x06 \x01(\x05R\x03ttl\x129\n" +
+	"\n" +
+	"created_at\x18\a \x01(\v2\x1a.google.protobuf.TimestampR\tcreatedAt\x129\n" +
+	"\n" +
+	"updated_at\x18\b \x01(\v2\x1a.google.protobuf.TimestampR\tupdatedAt\"P\n" +
+	"\x12ListRecordsRequest\x12\x12\n" +
+	"\x04zone\x18\x01 \x01(\tR\x04zone\x12\x12\n" +
+	"\x04name\x18\x02 \x01(\tR\x04name\x12\x12\n" +
+	"\x04type\x18\x03 \x01(\tR\x04type\"@\n" +
+	"\x13ListRecordsResponse\x12)\n" +
+	"\arecords\x18\x01 \x03(\v2\x0f.mcns.v1.RecordR\arecords\"y\n" +
+	"\x13CreateRecordRequest\x12\x12\n" +
+	"\x04zone\x18\x01 \x01(\tR\x04zone\x12\x12\n" +
+	"\x04name\x18\x02 \x01(\tR\x04name\x12\x12\n" +
+	"\x04type\x18\x03 \x01(\tR\x04type\x12\x14\n" +
+	"\x05value\x18\x04 \x01(\tR\x05value\x12\x10\n" +
+	"\x03ttl\x18\x05 \x01(\x05R\x03ttl\"\"\n" +
+	"\x10GetRecordRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\"u\n" +
+	"\x13UpdateRecordRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\x12\x12\n" +
+	"\x04name\x18\x02 \x01(\tR\x04name\x12\x12\n" +
+	"\x04type\x18\x03 \x01(\tR\x04type\x12\x14\n" +
+	"\x05value\x18\x04 \x01(\tR\x05value\x12\x10\n" +
+	"\x03ttl\x18\x05 \x01(\x05R\x03ttl\"%\n" +
+	"\x13DeleteRecordRequest\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\"\x16\n" +
+	"\x14DeleteRecordResponse2\xdd\x02\n" +
+	"\rRecordService\x12H\n" +
+	"\vListRecords\x12\x1b.mcns.v1.ListRecordsRequest\x1a\x1c.mcns.v1.ListRecordsResponse\x12=\n" +
+	"\fCreateRecord\x12\x1c.mcns.v1.CreateRecordRequest\x1a\x0f.mcns.v1.Record\x127\n" +
+	"\tGetRecord\x12\x19.mcns.v1.GetRecordRequest\x1a\x0f.mcns.v1.Record\x12=\n" +
+	"\fUpdateRecord\x12\x1c.mcns.v1.UpdateRecordRequest\x1a\x0f.mcns.v1.Record\x12K\n" +
+	"\fDeleteRecord\x12\x1c.mcns.v1.DeleteRecordRequest\x1a\x1d.mcns.v1.DeleteRecordResponseB/Z-git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1b\x06proto3"
+
+var (
+	file_proto_mcns_v1_record_proto_rawDescOnce sync.Once
+	file_proto_mcns_v1_record_proto_rawDescData []byte
+)
+
+func file_proto_mcns_v1_record_proto_rawDescGZIP() []byte {
+	file_proto_mcns_v1_record_proto_rawDescOnce.Do(func() {
+		file_proto_mcns_v1_record_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_record_proto_rawDesc), len(file_proto_mcns_v1_record_proto_rawDesc)))
+	})
+	return file_proto_mcns_v1_record_proto_rawDescData
+}
+
+var file_proto_mcns_v1_record_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_proto_mcns_v1_record_proto_goTypes = []any{
+	(*Record)(nil),                // 0: mcns.v1.Record
+	(*ListRecordsRequest)(nil),    // 1: mcns.v1.ListRecordsRequest
+	(*ListRecordsResponse)(nil),   // 2: mcns.v1.ListRecordsResponse
+	(*CreateRecordRequest)(nil),   // 3: mcns.v1.CreateRecordRequest
+	(*GetRecordRequest)(nil),      // 4: mcns.v1.GetRecordRequest
+	(*UpdateRecordRequest)(nil),   // 5: mcns.v1.UpdateRecordRequest
+	(*DeleteRecordRequest)(nil),   // 6: mcns.v1.DeleteRecordRequest
+	(*DeleteRecordResponse)(nil),  // 7: mcns.v1.DeleteRecordResponse
+	(*timestamppb.Timestamp)(nil), // 8: google.protobuf.Timestamp
+}
+var file_proto_mcns_v1_record_proto_depIdxs = []int32{
+	8, // 0: mcns.v1.Record.created_at:type_name -> google.protobuf.Timestamp
+	8, // 1: mcns.v1.Record.updated_at:type_name -> google.protobuf.Timestamp
+	0, // 2: mcns.v1.ListRecordsResponse.records:type_name -> mcns.v1.Record
+	1, // 3: mcns.v1.RecordService.ListRecords:input_type -> mcns.v1.ListRecordsRequest
+	3, // 4: mcns.v1.RecordService.CreateRecord:input_type -> mcns.v1.CreateRecordRequest
+	4, // 5: mcns.v1.RecordService.GetRecord:input_type -> mcns.v1.GetRecordRequest
+	5, // 6: mcns.v1.RecordService.UpdateRecord:input_type -> mcns.v1.UpdateRecordRequest
+	6, // 7: mcns.v1.RecordService.DeleteRecord:input_type -> mcns.v1.DeleteRecordRequest
+	2, // 8: mcns.v1.RecordService.ListRecords:output_type -> mcns.v1.ListRecordsResponse
+	0, // 9: mcns.v1.RecordService.CreateRecord:output_type -> mcns.v1.Record
+	0, // 10: mcns.v1.RecordService.GetRecord:output_type -> mcns.v1.Record
+	0, // 11: mcns.v1.RecordService.UpdateRecord:output_type -> mcns.v1.Record
+	7, // 12: mcns.v1.RecordService.DeleteRecord:output_type -> mcns.v1.DeleteRecordResponse
+	8, // [8:13] is the sub-list for method output_type
+	3, // [3:8] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
+}
+
+func init() { file_proto_mcns_v1_record_proto_init() }
+func file_proto_mcns_v1_record_proto_init() {
+	if File_proto_mcns_v1_record_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_record_proto_rawDesc), len(file_proto_mcns_v1_record_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   8,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_mcns_v1_record_proto_goTypes,
+		DependencyIndexes: file_proto_mcns_v1_record_proto_depIdxs,
+		MessageInfos:      file_proto_mcns_v1_record_proto_msgTypes,
+	}.Build()
+	File_proto_mcns_v1_record_proto = out.File
+	file_proto_mcns_v1_record_proto_goTypes = nil
+	file_proto_mcns_v1_record_proto_depIdxs = nil
+}

gen/mcns/v1/record_grpc.pb.go

@@ -0,0 +1,277 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.6.1
+// - protoc             v6.32.1
+// source: proto/mcns/v1/record.proto
+
+package mcnsv1
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	RecordService_ListRecords_FullMethodName  = "/mcns.v1.RecordService/ListRecords"
+	RecordService_CreateRecord_FullMethodName = "/mcns.v1.RecordService/CreateRecord"
+	RecordService_GetRecord_FullMethodName    = "/mcns.v1.RecordService/GetRecord"
+	RecordService_UpdateRecord_FullMethodName = "/mcns.v1.RecordService/UpdateRecord"
+	RecordService_DeleteRecord_FullMethodName = "/mcns.v1.RecordService/DeleteRecord"
+)
+
+// RecordServiceClient is the client API for RecordService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+//
+// RecordService manages DNS records within zones.
+type RecordServiceClient interface {
+	ListRecords(ctx context.Context, in *ListRecordsRequest, opts ...grpc.CallOption) (*ListRecordsResponse, error)
+	CreateRecord(ctx context.Context, in *CreateRecordRequest, opts ...grpc.CallOption) (*Record, error)
+	GetRecord(ctx context.Context, in *GetRecordRequest, opts ...grpc.CallOption) (*Record, error)
+	UpdateRecord(ctx context.Context, in *UpdateRecordRequest, opts ...grpc.CallOption) (*Record, error)
+	DeleteRecord(ctx context.Context, in *DeleteRecordRequest, opts ...grpc.CallOption) (*DeleteRecordResponse, error)
+}
+
+type recordServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewRecordServiceClient(cc grpc.ClientConnInterface) RecordServiceClient {
+	return &recordServiceClient{cc}
+}
+
+func (c *recordServiceClient) ListRecords(ctx context.Context, in *ListRecordsRequest, opts ...grpc.CallOption) (*ListRecordsResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListRecordsResponse)
+	err := c.cc.Invoke(ctx, RecordService_ListRecords_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *recordServiceClient) CreateRecord(ctx context.Context, in *CreateRecordRequest, opts ...grpc.CallOption) (*Record, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(Record)
+	err := c.cc.Invoke(ctx, RecordService_CreateRecord_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *recordServiceClient) GetRecord(ctx context.Context, in *GetRecordRequest, opts ...grpc.CallOption) (*Record, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(Record)
+	err := c.cc.Invoke(ctx, RecordService_GetRecord_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *recordServiceClient) UpdateRecord(ctx context.Context, in *UpdateRecordRequest, opts ...grpc.CallOption) (*Record, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(Record)
+	err := c.cc.Invoke(ctx, RecordService_UpdateRecord_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *recordServiceClient) DeleteRecord(ctx context.Context, in *DeleteRecordRequest, opts ...grpc.CallOption) (*DeleteRecordResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(DeleteRecordResponse)
+	err := c.cc.Invoke(ctx, RecordService_DeleteRecord_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// RecordServiceServer is the server API for RecordService service.
+// All implementations must embed UnimplementedRecordServiceServer
+// for forward compatibility.
+//
+// RecordService manages DNS records within zones.
+type RecordServiceServer interface {
+	ListRecords(context.Context, *ListRecordsRequest) (*ListRecordsResponse, error)
+	CreateRecord(context.Context, *CreateRecordRequest) (*Record, error)
+	GetRecord(context.Context, *GetRecordRequest) (*Record, error)
+	UpdateRecord(context.Context, *UpdateRecordRequest) (*Record, error)
+	DeleteRecord(context.Context, *DeleteRecordRequest) (*DeleteRecordResponse, error)
+	mustEmbedUnimplementedRecordServiceServer()
+}
+
+// UnimplementedRecordServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedRecordServiceServer struct{}
+
+func (UnimplementedRecordServiceServer) ListRecords(context.Context, *ListRecordsRequest) (*ListRecordsResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method ListRecords not implemented")
+}
+func (UnimplementedRecordServiceServer) CreateRecord(context.Context, *CreateRecordRequest) (*Record, error) {
+	return nil, status.Error(codes.Unimplemented, "method CreateRecord not implemented")
+}
+func (UnimplementedRecordServiceServer) GetRecord(context.Context, *GetRecordRequest) (*Record, error) {
+	return nil, status.Error(codes.Unimplemented, "method GetRecord not implemented")
+}
+func (UnimplementedRecordServiceServer) UpdateRecord(context.Context, *UpdateRecordRequest) (*Record, error) {
+	return nil, status.Error(codes.Unimplemented, "method UpdateRecord not implemented")
+}
+func (UnimplementedRecordServiceServer) DeleteRecord(context.Context, *DeleteRecordRequest) (*DeleteRecordResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method DeleteRecord not implemented")
+}
+func (UnimplementedRecordServiceServer) mustEmbedUnimplementedRecordServiceServer() {}
+func (UnimplementedRecordServiceServer) testEmbeddedByValue()                       {}
+
+// UnsafeRecordServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to RecordServiceServer will
+// result in compilation errors.
+type UnsafeRecordServiceServer interface {
+	mustEmbedUnimplementedRecordServiceServer()
+}
+
+func RegisterRecordServiceServer(s grpc.ServiceRegistrar, srv RecordServiceServer) {
+	// If the following call panics, it indicates UnimplementedRecordServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&RecordService_ServiceDesc, srv)
+}
+
+func _RecordService_ListRecords_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListRecordsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RecordServiceServer).ListRecords(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: RecordService_ListRecords_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RecordServiceServer).ListRecords(ctx, req.(*ListRecordsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _RecordService_CreateRecord_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateRecordRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RecordServiceServer).CreateRecord(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: RecordService_CreateRecord_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RecordServiceServer).CreateRecord(ctx, req.(*CreateRecordRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _RecordService_GetRecord_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetRecordRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RecordServiceServer).GetRecord(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: RecordService_GetRecord_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RecordServiceServer).GetRecord(ctx, req.(*GetRecordRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _RecordService_UpdateRecord_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UpdateRecordRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RecordServiceServer).UpdateRecord(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: RecordService_UpdateRecord_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RecordServiceServer).UpdateRecord(ctx, req.(*UpdateRecordRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _RecordService_DeleteRecord_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeleteRecordRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RecordServiceServer).DeleteRecord(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: RecordService_DeleteRecord_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RecordServiceServer).DeleteRecord(ctx, req.(*DeleteRecordRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// RecordService_ServiceDesc is the grpc.ServiceDesc for RecordService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var RecordService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "mcns.v1.RecordService",
+	HandlerType: (*RecordServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "ListRecords",
+			Handler:    _RecordService_ListRecords_Handler,
+		},
+		{
+			MethodName: "CreateRecord",
+			Handler:    _RecordService_CreateRecord_Handler,
+		},
+		{
+			MethodName: "GetRecord",
+			Handler:    _RecordService_GetRecord_Handler,
+		},
+		{
+			MethodName: "UpdateRecord",
+			Handler:    _RecordService_UpdateRecord_Handler,
+		},
+		{
+			MethodName: "DeleteRecord",
+			Handler:    _RecordService_DeleteRecord_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "proto/mcns/v1/record.proto",
+}

gen/mcns/v1/zone.pb.go

@@ -0,0 +1,667 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.11
+// 	protoc        v6.32.1
+// source: proto/mcns/v1/zone.proto
+
+package mcnsv1
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Zone struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            int64                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Name          string                 `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	PrimaryNs     string                 `protobuf:"bytes,3,opt,name=primary_ns,json=primaryNs,proto3" json:"primary_ns,omitempty"`
+	AdminEmail    string                 `protobuf:"bytes,4,opt,name=admin_email,json=adminEmail,proto3" json:"admin_email,omitempty"`
+	Refresh       int32                  `protobuf:"varint,5,opt,name=refresh,proto3" json:"refresh,omitempty"`
+	Retry         int32                  `protobuf:"varint,6,opt,name=retry,proto3" json:"retry,omitempty"`
+	Expire        int32                  `protobuf:"varint,7,opt,name=expire,proto3" json:"expire,omitempty"`
+	MinimumTtl    int32                  `protobuf:"varint,8,opt,name=minimum_ttl,json=minimumTtl,proto3" json:"minimum_ttl,omitempty"`
+	Serial        int64                  `protobuf:"varint,9,opt,name=serial,proto3" json:"serial,omitempty"`
+	CreatedAt     *timestamppb.Timestamp `protobuf:"bytes,10,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"`
+	UpdatedAt     *timestamppb.Timestamp `protobuf:"bytes,11,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *Zone) Reset() {
+	*x = Zone{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Zone) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Zone) ProtoMessage() {}
+
+func (x *Zone) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Zone.ProtoReflect.Descriptor instead.
+func (*Zone) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Zone) GetId() int64 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *Zone) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *Zone) GetPrimaryNs() string {
+	if x != nil {
+		return x.PrimaryNs
+	}
+	return ""
+}
+
+func (x *Zone) GetAdminEmail() string {
+	if x != nil {
+		return x.AdminEmail
+	}
+	return ""
+}
+
+func (x *Zone) GetRefresh() int32 {
+	if x != nil {
+		return x.Refresh
+	}
+	return 0
+}
+
+func (x *Zone) GetRetry() int32 {
+	if x != nil {
+		return x.Retry
+	}
+	return 0
+}
+
+func (x *Zone) GetExpire() int32 {
+	if x != nil {
+		return x.Expire
+	}
+	return 0
+}
+
+func (x *Zone) GetMinimumTtl() int32 {
+	if x != nil {
+		return x.MinimumTtl
+	}
+	return 0
+}
+
+func (x *Zone) GetSerial() int64 {
+	if x != nil {
+		return x.Serial
+	}
+	return 0
+}
+
+func (x *Zone) GetCreatedAt() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreatedAt
+	}
+	return nil
+}
+
+func (x *Zone) GetUpdatedAt() *timestamppb.Timestamp {
+	if x != nil {
+		return x.UpdatedAt
+	}
+	return nil
+}
+
+type ListZonesRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListZonesRequest) Reset() {
+	*x = ListZonesRequest{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListZonesRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListZonesRequest) ProtoMessage() {}
+
+func (x *ListZonesRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListZonesRequest.ProtoReflect.Descriptor instead.
+func (*ListZonesRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{1}
+}
+
+type ListZonesResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Zones         []*Zone                `protobuf:"bytes,1,rep,name=zones,proto3" json:"zones,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListZonesResponse) Reset() {
+	*x = ListZonesResponse{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListZonesResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListZonesResponse) ProtoMessage() {}
+
+func (x *ListZonesResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListZonesResponse.ProtoReflect.Descriptor instead.
+func (*ListZonesResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *ListZonesResponse) GetZones() []*Zone {
+	if x != nil {
+		return x.Zones
+	}
+	return nil
+}
+
+type CreateZoneRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Name          string                 `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	PrimaryNs     string                 `protobuf:"bytes,2,opt,name=primary_ns,json=primaryNs,proto3" json:"primary_ns,omitempty"`
+	AdminEmail    string                 `protobuf:"bytes,3,opt,name=admin_email,json=adminEmail,proto3" json:"admin_email,omitempty"`
+	Refresh       int32                  `protobuf:"varint,4,opt,name=refresh,proto3" json:"refresh,omitempty"`
+	Retry         int32                  `protobuf:"varint,5,opt,name=retry,proto3" json:"retry,omitempty"`
+	Expire        int32                  `protobuf:"varint,6,opt,name=expire,proto3" json:"expire,omitempty"`
+	MinimumTtl    int32                  `protobuf:"varint,7,opt,name=minimum_ttl,json=minimumTtl,proto3" json:"minimum_ttl,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *CreateZoneRequest) Reset() {
+	*x = CreateZoneRequest{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *CreateZoneRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateZoneRequest) ProtoMessage() {}
+
+func (x *CreateZoneRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreateZoneRequest.ProtoReflect.Descriptor instead.
+func (*CreateZoneRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *CreateZoneRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *CreateZoneRequest) GetPrimaryNs() string {
+	if x != nil {
+		return x.PrimaryNs
+	}
+	return ""
+}
+
+func (x *CreateZoneRequest) GetAdminEmail() string {
+	if x != nil {
+		return x.AdminEmail
+	}
+	return ""
+}
+
+func (x *CreateZoneRequest) GetRefresh() int32 {
+	if x != nil {
+		return x.Refresh
+	}
+	return 0
+}
+
+func (x *CreateZoneRequest) GetRetry() int32 {
+	if x != nil {
+		return x.Retry
+	}
+	return 0
+}
+
+func (x *CreateZoneRequest) GetExpire() int32 {
+	if x != nil {
+		return x.Expire
+	}
+	return 0
+}
+
+func (x *CreateZoneRequest) GetMinimumTtl() int32 {
+	if x != nil {
+		return x.MinimumTtl
+	}
+	return 0
+}
+
+type GetZoneRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Name          string                 `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GetZoneRequest) Reset() {
+	*x = GetZoneRequest{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetZoneRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetZoneRequest) ProtoMessage() {}
+
+func (x *GetZoneRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetZoneRequest.ProtoReflect.Descriptor instead.
+func (*GetZoneRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *GetZoneRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type UpdateZoneRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Name          string                 `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	PrimaryNs     string                 `protobuf:"bytes,2,opt,name=primary_ns,json=primaryNs,proto3" json:"primary_ns,omitempty"`
+	AdminEmail    string                 `protobuf:"bytes,3,opt,name=admin_email,json=adminEmail,proto3" json:"admin_email,omitempty"`
+	Refresh       int32                  `protobuf:"varint,4,opt,name=refresh,proto3" json:"refresh,omitempty"`
+	Retry         int32                  `protobuf:"varint,5,opt,name=retry,proto3" json:"retry,omitempty"`
+	Expire        int32                  `protobuf:"varint,6,opt,name=expire,proto3" json:"expire,omitempty"`
+	MinimumTtl    int32                  `protobuf:"varint,7,opt,name=minimum_ttl,json=minimumTtl,proto3" json:"minimum_ttl,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *UpdateZoneRequest) Reset() {
+	*x = UpdateZoneRequest{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *UpdateZoneRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UpdateZoneRequest) ProtoMessage() {}
+
+func (x *UpdateZoneRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UpdateZoneRequest.ProtoReflect.Descriptor instead.
+func (*UpdateZoneRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *UpdateZoneRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *UpdateZoneRequest) GetPrimaryNs() string {
+	if x != nil {
+		return x.PrimaryNs
+	}
+	return ""
+}
+
+func (x *UpdateZoneRequest) GetAdminEmail() string {
+	if x != nil {
+		return x.AdminEmail
+	}
+	return ""
+}
+
+func (x *UpdateZoneRequest) GetRefresh() int32 {
+	if x != nil {
+		return x.Refresh
+	}
+	return 0
+}
+
+func (x *UpdateZoneRequest) GetRetry() int32 {
+	if x != nil {
+		return x.Retry
+	}
+	return 0
+}
+
+func (x *UpdateZoneRequest) GetExpire() int32 {
+	if x != nil {
+		return x.Expire
+	}
+	return 0
+}
+
+func (x *UpdateZoneRequest) GetMinimumTtl() int32 {
+	if x != nil {
+		return x.MinimumTtl
+	}
+	return 0
+}
+
+type DeleteZoneRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Name          string                 `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *DeleteZoneRequest) Reset() {
+	*x = DeleteZoneRequest{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[6]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *DeleteZoneRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DeleteZoneRequest) ProtoMessage() {}
+
+func (x *DeleteZoneRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[6]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DeleteZoneRequest.ProtoReflect.Descriptor instead.
+func (*DeleteZoneRequest) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *DeleteZoneRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+type DeleteZoneResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *DeleteZoneResponse) Reset() {
+	*x = DeleteZoneResponse{}
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[7]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *DeleteZoneResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DeleteZoneResponse) ProtoMessage() {}
+
+func (x *DeleteZoneResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_mcns_v1_zone_proto_msgTypes[7]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DeleteZoneResponse.ProtoReflect.Descriptor instead.
+func (*DeleteZoneResponse) Descriptor() ([]byte, []int) {
+	return file_proto_mcns_v1_zone_proto_rawDescGZIP(), []int{7}
+}
+
+var File_proto_mcns_v1_zone_proto protoreflect.FileDescriptor
+
+const file_proto_mcns_v1_zone_proto_rawDesc = "" +
+	"\n" +
+	"\x18proto/mcns/v1/zone.proto\x12\amcns.v1\x1a\x1fgoogle/protobuf/timestamp.proto\"\xe1\x02\n" +
+	"\x04Zone\x12\x0e\n" +
+	"\x02id\x18\x01 \x01(\x03R\x02id\x12\x12\n" +
+	"\x04name\x18\x02 \x01(\tR\x04name\x12\x1d\n" +
+	"\n" +
+	"primary_ns\x18\x03 \x01(\tR\tprimaryNs\x12\x1f\n" +
+	"\vadmin_email\x18\x04 \x01(\tR\n" +
+	"adminEmail\x12\x18\n" +
+	"\arefresh\x18\x05 \x01(\x05R\arefresh\x12\x14\n" +
+	"\x05retry\x18\x06 \x01(\x05R\x05retry\x12\x16\n" +
+	"\x06expire\x18\a \x01(\x05R\x06expire\x12\x1f\n" +
+	"\vminimum_ttl\x18\b \x01(\x05R\n" +
+	"minimumTtl\x12\x16\n" +
+	"\x06serial\x18\t \x01(\x03R\x06serial\x129\n" +
+	"\n" +
+	"created_at\x18\n" +
+	" \x01(\v2\x1a.google.protobuf.TimestampR\tcreatedAt\x129\n" +
+	"\n" +
+	"updated_at\x18\v \x01(\v2\x1a.google.protobuf.TimestampR\tupdatedAt\"\x12\n" +
+	"\x10ListZonesRequest\"8\n" +
+	"\x11ListZonesResponse\x12#\n" +
+	"\x05zones\x18\x01 \x03(\v2\r.mcns.v1.ZoneR\x05zones\"\xd0\x01\n" +
+	"\x11CreateZoneRequest\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\x12\x1d\n" +
+	"\n" +
+	"primary_ns\x18\x02 \x01(\tR\tprimaryNs\x12\x1f\n" +
+	"\vadmin_email\x18\x03 \x01(\tR\n" +
+	"adminEmail\x12\x18\n" +
+	"\arefresh\x18\x04 \x01(\x05R\arefresh\x12\x14\n" +
+	"\x05retry\x18\x05 \x01(\x05R\x05retry\x12\x16\n" +
+	"\x06expire\x18\x06 \x01(\x05R\x06expire\x12\x1f\n" +
+	"\vminimum_ttl\x18\a \x01(\x05R\n" +
+	"minimumTtl\"$\n" +
+	"\x0eGetZoneRequest\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\"\xd0\x01\n" +
+	"\x11UpdateZoneRequest\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\x12\x1d\n" +
+	"\n" +
+	"primary_ns\x18\x02 \x01(\tR\tprimaryNs\x12\x1f\n" +
+	"\vadmin_email\x18\x03 \x01(\tR\n" +
+	"adminEmail\x12\x18\n" +
+	"\arefresh\x18\x04 \x01(\x05R\arefresh\x12\x14\n" +
+	"\x05retry\x18\x05 \x01(\x05R\x05retry\x12\x16\n" +
+	"\x06expire\x18\x06 \x01(\x05R\x06expire\x12\x1f\n" +
+	"\vminimum_ttl\x18\a \x01(\x05R\n" +
+	"minimumTtl\"'\n" +
+	"\x11DeleteZoneRequest\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\"\x14\n" +
+	"\x12DeleteZoneResponse2\xbd\x02\n" +
+	"\vZoneService\x12B\n" +
+	"\tListZones\x12\x19.mcns.v1.ListZonesRequest\x1a\x1a.mcns.v1.ListZonesResponse\x127\n" +
+	"\n" +
+	"CreateZone\x12\x1a.mcns.v1.CreateZoneRequest\x1a\r.mcns.v1.Zone\x121\n" +
+	"\aGetZone\x12\x17.mcns.v1.GetZoneRequest\x1a\r.mcns.v1.Zone\x127\n" +
+	"\n" +
+	"UpdateZone\x12\x1a.mcns.v1.UpdateZoneRequest\x1a\r.mcns.v1.Zone\x12E\n" +
+	"\n" +
+	"DeleteZone\x12\x1a.mcns.v1.DeleteZoneRequest\x1a\x1b.mcns.v1.DeleteZoneResponseB/Z-git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1b\x06proto3"
+
+var (
+	file_proto_mcns_v1_zone_proto_rawDescOnce sync.Once
+	file_proto_mcns_v1_zone_proto_rawDescData []byte
+)
+
+func file_proto_mcns_v1_zone_proto_rawDescGZIP() []byte {
+	file_proto_mcns_v1_zone_proto_rawDescOnce.Do(func() {
+		file_proto_mcns_v1_zone_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_zone_proto_rawDesc), len(file_proto_mcns_v1_zone_proto_rawDesc)))
+	})
+	return file_proto_mcns_v1_zone_proto_rawDescData
+}
+
+var file_proto_mcns_v1_zone_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_proto_mcns_v1_zone_proto_goTypes = []any{
+	(*Zone)(nil),                  // 0: mcns.v1.Zone
+	(*ListZonesRequest)(nil),      // 1: mcns.v1.ListZonesRequest
+	(*ListZonesResponse)(nil),     // 2: mcns.v1.ListZonesResponse
+	(*CreateZoneRequest)(nil),     // 3: mcns.v1.CreateZoneRequest
+	(*GetZoneRequest)(nil),        // 4: mcns.v1.GetZoneRequest
+	(*UpdateZoneRequest)(nil),     // 5: mcns.v1.UpdateZoneRequest
+	(*DeleteZoneRequest)(nil),     // 6: mcns.v1.DeleteZoneRequest
+	(*DeleteZoneResponse)(nil),    // 7: mcns.v1.DeleteZoneResponse
+	(*timestamppb.Timestamp)(nil), // 8: google.protobuf.Timestamp
+}
+var file_proto_mcns_v1_zone_proto_depIdxs = []int32{
+	8, // 0: mcns.v1.Zone.created_at:type_name -> google.protobuf.Timestamp
+	8, // 1: mcns.v1.Zone.updated_at:type_name -> google.protobuf.Timestamp
+	0, // 2: mcns.v1.ListZonesResponse.zones:type_name -> mcns.v1.Zone
+	1, // 3: mcns.v1.ZoneService.ListZones:input_type -> mcns.v1.ListZonesRequest
+	3, // 4: mcns.v1.ZoneService.CreateZone:input_type -> mcns.v1.CreateZoneRequest
+	4, // 5: mcns.v1.ZoneService.GetZone:input_type -> mcns.v1.GetZoneRequest
+	5, // 6: mcns.v1.ZoneService.UpdateZone:input_type -> mcns.v1.UpdateZoneRequest
+	6, // 7: mcns.v1.ZoneService.DeleteZone:input_type -> mcns.v1.DeleteZoneRequest
+	2, // 8: mcns.v1.ZoneService.ListZones:output_type -> mcns.v1.ListZonesResponse
+	0, // 9: mcns.v1.ZoneService.CreateZone:output_type -> mcns.v1.Zone
+	0, // 10: mcns.v1.ZoneService.GetZone:output_type -> mcns.v1.Zone
+	0, // 11: mcns.v1.ZoneService.UpdateZone:output_type -> mcns.v1.Zone
+	7, // 12: mcns.v1.ZoneService.DeleteZone:output_type -> mcns.v1.DeleteZoneResponse
+	8, // [8:13] is the sub-list for method output_type
+	3, // [3:8] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
+}
+
+func init() { file_proto_mcns_v1_zone_proto_init() }
+func file_proto_mcns_v1_zone_proto_init() {
+	if File_proto_mcns_v1_zone_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proto_mcns_v1_zone_proto_rawDesc), len(file_proto_mcns_v1_zone_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   8,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_mcns_v1_zone_proto_goTypes,
+		DependencyIndexes: file_proto_mcns_v1_zone_proto_depIdxs,
+		MessageInfos:      file_proto_mcns_v1_zone_proto_msgTypes,
+	}.Build()
+	File_proto_mcns_v1_zone_proto = out.File
+	file_proto_mcns_v1_zone_proto_goTypes = nil
+	file_proto_mcns_v1_zone_proto_depIdxs = nil
+}

gen/mcns/v1/zone_grpc.pb.go

@@ -0,0 +1,277 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.6.1
+// - protoc             v6.32.1
+// source: proto/mcns/v1/zone.proto
+
+package mcnsv1
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	ZoneService_ListZones_FullMethodName  = "/mcns.v1.ZoneService/ListZones"
+	ZoneService_CreateZone_FullMethodName = "/mcns.v1.ZoneService/CreateZone"
+	ZoneService_GetZone_FullMethodName    = "/mcns.v1.ZoneService/GetZone"
+	ZoneService_UpdateZone_FullMethodName = "/mcns.v1.ZoneService/UpdateZone"
+	ZoneService_DeleteZone_FullMethodName = "/mcns.v1.ZoneService/DeleteZone"
+)
+
+// ZoneServiceClient is the client API for ZoneService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+//
+// ZoneService manages DNS zones and their SOA parameters.
+type ZoneServiceClient interface {
+	ListZones(ctx context.Context, in *ListZonesRequest, opts ...grpc.CallOption) (*ListZonesResponse, error)
+	CreateZone(ctx context.Context, in *CreateZoneRequest, opts ...grpc.CallOption) (*Zone, error)
+	GetZone(ctx context.Context, in *GetZoneRequest, opts ...grpc.CallOption) (*Zone, error)
+	UpdateZone(ctx context.Context, in *UpdateZoneRequest, opts ...grpc.CallOption) (*Zone, error)
+	DeleteZone(ctx context.Context, in *DeleteZoneRequest, opts ...grpc.CallOption) (*DeleteZoneResponse, error)
+}
+
+type zoneServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewZoneServiceClient(cc grpc.ClientConnInterface) ZoneServiceClient {
+	return &zoneServiceClient{cc}
+}
+
+func (c *zoneServiceClient) ListZones(ctx context.Context, in *ListZonesRequest, opts ...grpc.CallOption) (*ListZonesResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListZonesResponse)
+	err := c.cc.Invoke(ctx, ZoneService_ListZones_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *zoneServiceClient) CreateZone(ctx context.Context, in *CreateZoneRequest, opts ...grpc.CallOption) (*Zone, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(Zone)
+	err := c.cc.Invoke(ctx, ZoneService_CreateZone_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *zoneServiceClient) GetZone(ctx context.Context, in *GetZoneRequest, opts ...grpc.CallOption) (*Zone, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(Zone)
+	err := c.cc.Invoke(ctx, ZoneService_GetZone_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *zoneServiceClient) UpdateZone(ctx context.Context, in *UpdateZoneRequest, opts ...grpc.CallOption) (*Zone, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(Zone)
+	err := c.cc.Invoke(ctx, ZoneService_UpdateZone_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *zoneServiceClient) DeleteZone(ctx context.Context, in *DeleteZoneRequest, opts ...grpc.CallOption) (*DeleteZoneResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(DeleteZoneResponse)
+	err := c.cc.Invoke(ctx, ZoneService_DeleteZone_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// ZoneServiceServer is the server API for ZoneService service.
+// All implementations must embed UnimplementedZoneServiceServer
+// for forward compatibility.
+//
+// ZoneService manages DNS zones and their SOA parameters.
+type ZoneServiceServer interface {
+	ListZones(context.Context, *ListZonesRequest) (*ListZonesResponse, error)
+	CreateZone(context.Context, *CreateZoneRequest) (*Zone, error)
+	GetZone(context.Context, *GetZoneRequest) (*Zone, error)
+	UpdateZone(context.Context, *UpdateZoneRequest) (*Zone, error)
+	DeleteZone(context.Context, *DeleteZoneRequest) (*DeleteZoneResponse, error)
+	mustEmbedUnimplementedZoneServiceServer()
+}
+
+// UnimplementedZoneServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedZoneServiceServer struct{}
+
+func (UnimplementedZoneServiceServer) ListZones(context.Context, *ListZonesRequest) (*ListZonesResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method ListZones not implemented")
+}
+func (UnimplementedZoneServiceServer) CreateZone(context.Context, *CreateZoneRequest) (*Zone, error) {
+	return nil, status.Error(codes.Unimplemented, "method CreateZone not implemented")
+}
+func (UnimplementedZoneServiceServer) GetZone(context.Context, *GetZoneRequest) (*Zone, error) {
+	return nil, status.Error(codes.Unimplemented, "method GetZone not implemented")
+}
+func (UnimplementedZoneServiceServer) UpdateZone(context.Context, *UpdateZoneRequest) (*Zone, error) {
+	return nil, status.Error(codes.Unimplemented, "method UpdateZone not implemented")
+}
+func (UnimplementedZoneServiceServer) DeleteZone(context.Context, *DeleteZoneRequest) (*DeleteZoneResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method DeleteZone not implemented")
+}
+func (UnimplementedZoneServiceServer) mustEmbedUnimplementedZoneServiceServer() {}
+func (UnimplementedZoneServiceServer) testEmbeddedByValue()                     {}
+
+// UnsafeZoneServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to ZoneServiceServer will
+// result in compilation errors.
+type UnsafeZoneServiceServer interface {
+	mustEmbedUnimplementedZoneServiceServer()
+}
+
+func RegisterZoneServiceServer(s grpc.ServiceRegistrar, srv ZoneServiceServer) {
+	// If the following call panics, it indicates UnimplementedZoneServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&ZoneService_ServiceDesc, srv)
+}
+
+func _ZoneService_ListZones_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListZonesRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ZoneServiceServer).ListZones(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ZoneService_ListZones_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ZoneServiceServer).ListZones(ctx, req.(*ListZonesRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ZoneService_CreateZone_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateZoneRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ZoneServiceServer).CreateZone(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ZoneService_CreateZone_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ZoneServiceServer).CreateZone(ctx, req.(*CreateZoneRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ZoneService_GetZone_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetZoneRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ZoneServiceServer).GetZone(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ZoneService_GetZone_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ZoneServiceServer).GetZone(ctx, req.(*GetZoneRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ZoneService_UpdateZone_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UpdateZoneRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ZoneServiceServer).UpdateZone(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ZoneService_UpdateZone_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ZoneServiceServer).UpdateZone(ctx, req.(*UpdateZoneRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ZoneService_DeleteZone_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeleteZoneRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ZoneServiceServer).DeleteZone(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ZoneService_DeleteZone_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ZoneServiceServer).DeleteZone(ctx, req.(*DeleteZoneRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// ZoneService_ServiceDesc is the grpc.ServiceDesc for ZoneService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var ZoneService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "mcns.v1.ZoneService",
+	HandlerType: (*ZoneServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "ListZones",
+			Handler:    _ZoneService_ListZones_Handler,
+		},
+		{
+			MethodName: "CreateZone",
+			Handler:    _ZoneService_CreateZone_Handler,
+		},
+		{
+			MethodName: "GetZone",
+			Handler:    _ZoneService_GetZone_Handler,
+		},
+		{
+			MethodName: "UpdateZone",
+			Handler:    _ZoneService_UpdateZone_Handler,
+		},
+		{
+			MethodName: "DeleteZone",
+			Handler:    _ZoneService_DeleteZone_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "proto/mcns/v1/zone.proto",
+}

go.mod

@@ -0,0 +1,34 @@
+module git.wntrmute.dev/kyle/mcns
+
+go 1.25.7
+
+require (
+	git.wntrmute.dev/kyle/mcdsl v1.0.0
+	github.com/go-chi/chi/v5 v5.2.5
+	github.com/miekg/dns v1.1.66
+	github.com/spf13/cobra v1.10.2
+	google.golang.org/grpc v1.79.3
+	google.golang.org/protobuf v1.36.11
+)
+
+require (
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.3.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/spf13/pflag v1.0.9 // indirect
+	golang.org/x/mod v0.33.0 // indirect
+	golang.org/x/net v0.50.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/text v0.34.0 // indirect
+	golang.org/x/tools v0.42.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	modernc.org/libc v1.70.0 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
+	modernc.org/sqlite v1.47.0 // indirect
+)

go.sum

@@ -0,0 +1,103 @@
+git.wntrmute.dev/kyle/mcdsl v1.0.0 h1:YB7dx4gdNYKKcVySpL6UkwHqdCJ9Nl1yS0+eHk0hNtk=
+git.wntrmute.dev/kyle/mcdsl v1.0.0/go.mod h1:wo0tGfUAxci3XnOe4/rFmR0RjUElKdYUazc+Np986sg=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/go-chi/chi/v5 v5.2.5 h1:Eg4myHZBjyvJmAFjFvWgrqDTXFyOzjj7YIm3L3mu6Ug=
+github.com/go-chi/chi/v5 v5.2.5/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/miekg/dns v1.1.66 h1:FeZXOS3VCVsKnEAd+wBkjMC3D2K+ww66Cq3VnCINuJE=
+github.com/miekg/dns v1.1.66/go.mod h1:jGFzBsSNbJw6z1HYut1RKBKHA9PBdxeHrZG8J+gC2WE=
+github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
+github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/pelletier/go-toml/v2 v2.3.0 h1:k59bC/lIZREW0/iVaQR8nDHxVq8OVlIzYCOJf421CaM=
+github.com/pelletier/go-toml/v2 v2.3.0/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
+github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=
+github.com/spf13/pflag v1.0.9 h1:9exaQaMOCwffKiiiYk6/BndUBv+iRViNW+4lEMi0PvY=
+github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/otel v1.39.0 h1:8yPrr/S0ND9QEfTfdP9V+SiwT4E0G7Y5MO7p85nis48=
+go.opentelemetry.io/otel v1.39.0/go.mod h1:kLlFTywNWrFyEdH0oj2xK0bFYZtHRYUdv1NklR/tgc8=
+go.opentelemetry.io/otel/metric v1.39.0 h1:d1UzonvEZriVfpNKEVmHXbdf909uGTOQjA0HF0Ls5Q0=
+go.opentelemetry.io/otel/metric v1.39.0/go.mod h1:jrZSWL33sD7bBxg1xjrqyDjnuzTUB0x1nBERXd7Ftcs=
+go.opentelemetry.io/otel/sdk v1.39.0 h1:nMLYcjVsvdui1B/4FRkwjzoRVsMK8uL/cj0OyhKzt18=
+go.opentelemetry.io/otel/sdk v1.39.0/go.mod h1:vDojkC4/jsTJsE+kh+LXYQlbL8CgrEcwmt1ENZszdJE=
+go.opentelemetry.io/otel/sdk/metric v1.39.0 h1:cXMVVFVgsIf2YL6QkRF4Urbr/aMInf+2WKg+sEJTtB8=
+go.opentelemetry.io/otel/sdk/metric v1.39.0/go.mod h1:xq9HEVH7qeX69/JnwEfp6fVq5wosJsY1mt4lLfYdVew=
+go.opentelemetry.io/otel/trace v1.39.0 h1:2d2vfpEDmCJ5zVYz7ijaJdOF59xLomrvj7bjt6/qCJI=
+go.opentelemetry.io/otel/trace v1.39.0/go.mod h1:88w4/PnZSazkGzz/w84VHpQafiU4EtqqlVdxWy+rNOA=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
+golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
+golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
+golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
+golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
+golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
+golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
+golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
+gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
+gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 h1:gRkg/vSppuSQoDjxyiGfN4Upv/h/DQmIR10ZU8dh4Ww=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
+google.golang.org/grpc v1.79.3 h1:sybAEdRIEtvcD68Gx7dmnwjZKlyfuc61Dyo9pGXXkKE=
+google.golang.org/grpc v1.79.3/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
+google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+modernc.org/cc/v4 v4.27.1 h1:9W30zRlYrefrDV2JE2O8VDtJ1yPGownxciz5rrbQZis=
+modernc.org/cc/v4 v4.27.1/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0=
+modernc.org/ccgo/v4 v4.32.0 h1:hjG66bI/kqIPX1b2yT6fr/jt+QedtP2fqojG2VrFuVw=
+modernc.org/ccgo/v4 v4.32.0/go.mod h1:6F08EBCx5uQc38kMGl+0Nm0oWczoo1c7cgpzEry7Uc0=
+modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM=
+modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU=
+modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
+modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
+modernc.org/gc/v3 v3.1.2 h1:ZtDCnhonXSZexk/AYsegNRV1lJGgaNZJuKjJSWKyEqo=
+modernc.org/gc/v3 v3.1.2/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
+modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
+modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
+modernc.org/libc v1.70.0 h1:U58NawXqXbgpZ/dcdS9kMshu08aiA6b7gusEusqzNkw=
+modernc.org/libc v1.70.0/go.mod h1:OVmxFGP1CI/Z4L3E0Q3Mf1PDE0BucwMkcXjjLntvHJo=
+modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
+modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
+modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
+modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8=
+modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.47.0 h1:R1XyaNpoW4Et9yly+I2EeX7pBza/w+pmYee/0HJDyKk=
+modernc.org/sqlite v1.47.0/go.mod h1:hWjRO6Tj/5Ik8ieqxQybiEOUXy0NJFNp2tpvVpKlvig=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

internal/config/config.go

@@ -0,0 +1,49 @@
+package config
+
+import (
+	"fmt"
+
+	mcdslconfig "git.wntrmute.dev/kyle/mcdsl/config"
+)
+
+// Config is the top-level MCNS configuration.
+type Config struct {
+	mcdslconfig.Base
+	DNS DNSConfig `toml:"dns"`
+}
+
+// DNSConfig holds the DNS server settings.
+type DNSConfig struct {
+	ListenAddr string   `toml:"listen_addr"`
+	Upstreams  []string `toml:"upstreams"`
+}
+
+// Load reads a TOML config file, applies environment variable overrides
+// (MCNS_ prefix), sets defaults, and validates required fields.
+func Load(path string) (*Config, error) {
+	cfg, err := mcdslconfig.Load[Config](path, "MCNS")
+	if err != nil {
+		return nil, err
+	}
+
+	// Apply DNS defaults.
+	if cfg.DNS.ListenAddr == "" {
+		cfg.DNS.ListenAddr = ":53"
+	}
+	if len(cfg.DNS.Upstreams) == 0 {
+		cfg.DNS.Upstreams = []string{"1.1.1.1:53", "8.8.8.8:53"}
+	}
+
+	return cfg, nil
+}
+
+// Validate implements the mcdsl config.Validator interface.
+func (c *Config) Validate() error {
+	if c.Database.Path == "" {
+		return fmt.Errorf("database.path is required")
+	}
+	if c.MCIAS.ServerURL == "" {
+		return fmt.Errorf("mcias.server_url is required")
+	}
+	return nil
+}

internal/db/db.go

@@ -0,0 +1,23 @@
+package db
+
+import (
+	"database/sql"
+	"fmt"
+
+	mcdsldb "git.wntrmute.dev/kyle/mcdsl/db"
+)
+
+// DB wraps a SQLite database connection.
+type DB struct {
+	*sql.DB
+}
+
+// Open opens (or creates) a SQLite database at the given path with the
+// standard Metacircular pragmas: WAL mode, foreign keys, busy timeout.
+func Open(path string) (*DB, error) {
+	sqlDB, err := mcdsldb.Open(path)
+	if err != nil {
+		return nil, fmt.Errorf("db: %w", err)
+	}
+	return &DB{sqlDB}, nil
+}

internal/db/migrate.go

@@ -0,0 +1,74 @@
+package db
+
+import (
+	mcdsldb "git.wntrmute.dev/kyle/mcdsl/db"
+)
+
+// Migrations is the ordered list of MCNS schema migrations.
+var Migrations = []mcdsldb.Migration{
+	{
+		Version: 1,
+		Name:    "zones and records",
+		SQL: `
+CREATE TABLE IF NOT EXISTS zones (
+    id          INTEGER PRIMARY KEY,
+    name        TEXT NOT NULL UNIQUE,
+    primary_ns  TEXT NOT NULL,
+    admin_email TEXT NOT NULL,
+    refresh     INTEGER NOT NULL DEFAULT 3600,
+    retry       INTEGER NOT NULL DEFAULT 600,
+    expire      INTEGER NOT NULL DEFAULT 86400,
+    minimum_ttl INTEGER NOT NULL DEFAULT 300,
+    serial      INTEGER NOT NULL DEFAULT 0,
+    created_at  TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    updated_at  TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
+);
+
+CREATE TABLE IF NOT EXISTS records (
+    id         INTEGER PRIMARY KEY,
+    zone_id    INTEGER NOT NULL REFERENCES zones(id) ON DELETE CASCADE,
+    name       TEXT NOT NULL,
+    type       TEXT NOT NULL CHECK (type IN ('A', 'AAAA', 'CNAME')),
+    value      TEXT NOT NULL,
+    ttl        INTEGER NOT NULL DEFAULT 300,
+    created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    UNIQUE(zone_id, name, type, value)
+);
+
+CREATE INDEX IF NOT EXISTS idx_records_zone_name ON records(zone_id, name);`,
+	},
+	{
+		Version: 2,
+		Name:    "seed zones and records from CoreDNS zone files",
+		SQL: `
+-- Zone: svc.mcp.metacircular.net (service addresses)
+INSERT INTO zones (id, name, primary_ns, admin_email, refresh, retry, expire, minimum_ttl, serial)
+VALUES (1, 'svc.mcp.metacircular.net', 'ns.mcp.metacircular.net.', 'admin.metacircular.net.', 3600, 600, 86400, 300, 2026032601);
+
+-- Zone: mcp.metacircular.net (node addresses)
+INSERT INTO zones (id, name, primary_ns, admin_email, refresh, retry, expire, minimum_ttl, serial)
+VALUES (2, 'mcp.metacircular.net', 'ns.mcp.metacircular.net.', 'admin.metacircular.net.', 3600, 600, 86400, 300, 2026032501);
+
+-- svc.mcp.metacircular.net records
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'metacrypt', 'A', '192.168.88.181', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'metacrypt', 'A', '100.95.252.120', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'mcr',       'A', '192.168.88.181', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'mcr',       'A', '100.95.252.120', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'sgard',     'A', '192.168.88.181', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'sgard',     'A', '100.95.252.120', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'mcp-agent', 'A', '192.168.88.181', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (1, 'mcp-agent', 'A', '100.95.252.120', 300);
+
+-- mcp.metacircular.net records
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (2, 'rift', 'A', '192.168.88.181', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (2, 'rift', 'A', '100.95.252.120', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (2, 'ns',   'A', '192.168.88.181', 300);
+INSERT INTO records (zone_id, name, type, value, ttl) VALUES (2, 'ns',   'A', '100.95.252.120', 300);`,
+	},
+}
+
+// Migrate applies all pending migrations.
+func (d *DB) Migrate() error {
+	return mcdsldb.Migrate(d.DB, Migrations)
+}

internal/db/records.go

@@ -0,0 +1,308 @@
+package db
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"net"
+	"strings"
+	"time"
+)
+
+// Record represents a DNS record stored in the database.
+type Record struct {
+	ID        int64
+	ZoneID    int64
+	ZoneName  string
+	Name      string
+	Type      string
+	Value     string
+	TTL       int
+	CreatedAt string
+	UpdatedAt string
+}
+
+// ListRecords returns records for a zone, optionally filtered by name and type.
+func (d *DB) ListRecords(zoneName, name, recordType string) ([]Record, error) {
+	zoneName = strings.ToLower(strings.TrimSuffix(zoneName, "."))
+
+	zone, err := d.GetZone(zoneName)
+	if err != nil {
+		return nil, err
+	}
+
+	query := `SELECT r.id, r.zone_id, z.name, r.name, r.type, r.value, r.ttl, r.created_at, r.updated_at
+		FROM records r JOIN zones z ON r.zone_id = z.id WHERE r.zone_id = ?`
+	args := []any{zone.ID}
+
+	if name != "" {
+		query += ` AND r.name = ?`
+		args = append(args, strings.ToLower(name))
+	}
+	if recordType != "" {
+		query += ` AND r.type = ?`
+		args = append(args, strings.ToUpper(recordType))
+	}
+
+	query += ` ORDER BY r.name, r.type, r.value`
+
+	rows, err := d.Query(query, args...)
+	if err != nil {
+		return nil, fmt.Errorf("list records: %w", err)
+	}
+	defer rows.Close()
+
+	var records []Record
+	for rows.Next() {
+		var r Record
+		if err := rows.Scan(&r.ID, &r.ZoneID, &r.ZoneName, &r.Name, &r.Type, &r.Value, &r.TTL, &r.CreatedAt, &r.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("scan record: %w", err)
+		}
+		records = append(records, r)
+	}
+	return records, rows.Err()
+}
+
+// LookupRecords returns records matching a name and type within a zone.
+// Used by the DNS handler for query resolution.
+func (d *DB) LookupRecords(zoneName, name, recordType string) ([]Record, error) {
+	zoneName = strings.ToLower(strings.TrimSuffix(zoneName, "."))
+	name = strings.ToLower(name)
+
+	rows, err := d.Query(`SELECT r.id, r.zone_id, z.name, r.name, r.type, r.value, r.ttl, r.created_at, r.updated_at
+		FROM records r JOIN zones z ON r.zone_id = z.id
+		WHERE z.name = ? AND r.name = ? AND r.type = ?`, zoneName, name, strings.ToUpper(recordType))
+	if err != nil {
+		return nil, fmt.Errorf("lookup records: %w", err)
+	}
+	defer rows.Close()
+
+	var records []Record
+	for rows.Next() {
+		var r Record
+		if err := rows.Scan(&r.ID, &r.ZoneID, &r.ZoneName, &r.Name, &r.Type, &r.Value, &r.TTL, &r.CreatedAt, &r.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("scan record: %w", err)
+		}
+		records = append(records, r)
+	}
+	return records, rows.Err()
+}
+
+// LookupCNAME returns CNAME records for a name within a zone.
+func (d *DB) LookupCNAME(zoneName, name string) ([]Record, error) {
+	return d.LookupRecords(zoneName, name, "CNAME")
+}
+
+// HasRecordsForName checks if any records of the given types exist for a name.
+func (d *DB) HasRecordsForName(tx *sql.Tx, zoneID int64, name string, types []string) (bool, error) {
+	placeholders := make([]string, len(types))
+	args := []any{zoneID, strings.ToLower(name)}
+	for i, t := range types {
+		placeholders[i] = "?"
+		args = append(args, strings.ToUpper(t))
+	}
+	query := fmt.Sprintf(`SELECT COUNT(*) FROM records WHERE zone_id = ? AND name = ? AND type IN (%s)`, strings.Join(placeholders, ","))
+
+	var count int
+	if err := tx.QueryRow(query, args...).Scan(&count); err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+// GetRecord returns a record by ID.
+func (d *DB) GetRecord(id int64) (*Record, error) {
+	var r Record
+	err := d.QueryRow(`SELECT r.id, r.zone_id, z.name, r.name, r.type, r.value, r.ttl, r.created_at, r.updated_at
+		FROM records r JOIN zones z ON r.zone_id = z.id WHERE r.id = ?`, id).
+		Scan(&r.ID, &r.ZoneID, &r.ZoneName, &r.Name, &r.Type, &r.Value, &r.TTL, &r.CreatedAt, &r.UpdatedAt)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("get record: %w", err)
+	}
+	return &r, nil
+}
+
+// CreateRecord inserts a new record, enforcing CNAME exclusivity and
+// value validation. Bumps the zone serial within the same transaction.
+func (d *DB) CreateRecord(zoneName, name, recordType, value string, ttl int) (*Record, error) {
+	zoneName = strings.ToLower(strings.TrimSuffix(zoneName, "."))
+	name = strings.ToLower(name)
+	recordType = strings.ToUpper(recordType)
+
+	if err := validateRecordValue(recordType, value); err != nil {
+		return nil, err
+	}
+
+	zone, err := d.GetZone(zoneName)
+	if err != nil {
+		return nil, err
+	}
+
+	if ttl <= 0 {
+		ttl = 300
+	}
+
+	tx, err := d.Begin()
+	if err != nil {
+		return nil, fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	// Enforce CNAME exclusivity.
+	if recordType == "CNAME" {
+		hasAddr, err := d.HasRecordsForName(tx, zone.ID, name, []string{"A", "AAAA"})
+		if err != nil {
+			return nil, fmt.Errorf("check cname exclusivity: %w", err)
+		}
+		if hasAddr {
+			return nil, fmt.Errorf("%w: CNAME record conflicts with existing A/AAAA record for %q", ErrConflict, name)
+		}
+	} else if recordType == "A" || recordType == "AAAA" {
+		hasCNAME, err := d.HasRecordsForName(tx, zone.ID, name, []string{"CNAME"})
+		if err != nil {
+			return nil, fmt.Errorf("check cname exclusivity: %w", err)
+		}
+		if hasCNAME {
+			return nil, fmt.Errorf("%w: A/AAAA record conflicts with existing CNAME record for %q", ErrConflict, name)
+		}
+	}
+
+	res, err := tx.Exec(`INSERT INTO records (zone_id, name, type, value, ttl) VALUES (?, ?, ?, ?, ?)`,
+		zone.ID, name, recordType, value, ttl)
+	if err != nil {
+		if strings.Contains(err.Error(), "UNIQUE constraint") {
+			return nil, fmt.Errorf("%w: record already exists", ErrConflict)
+		}
+		return nil, fmt.Errorf("insert record: %w", err)
+	}
+
+	recordID, err := res.LastInsertId()
+	if err != nil {
+		return nil, fmt.Errorf("last insert id: %w", err)
+	}
+
+	if err := d.BumpSerial(tx, zone.ID); err != nil {
+		return nil, fmt.Errorf("bump serial: %w", err)
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, fmt.Errorf("commit: %w", err)
+	}
+
+	return d.GetRecord(recordID)
+}
+
+// UpdateRecord updates an existing record's fields and bumps the zone serial.
+func (d *DB) UpdateRecord(id int64, name, recordType, value string, ttl int) (*Record, error) {
+	name = strings.ToLower(name)
+	recordType = strings.ToUpper(recordType)
+
+	if err := validateRecordValue(recordType, value); err != nil {
+		return nil, err
+	}
+
+	existing, err := d.GetRecord(id)
+	if err != nil {
+		return nil, err
+	}
+
+	if ttl <= 0 {
+		ttl = 300
+	}
+
+	tx, err := d.Begin()
+	if err != nil {
+		return nil, fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	// Enforce CNAME exclusivity for the new type/name combo.
+	if recordType == "CNAME" {
+		hasAddr, err := d.HasRecordsForName(tx, existing.ZoneID, name, []string{"A", "AAAA"})
+		if err != nil {
+			return nil, fmt.Errorf("check cname exclusivity: %w", err)
+		}
+		if hasAddr {
+			return nil, fmt.Errorf("%w: CNAME record conflicts with existing A/AAAA record for %q", ErrConflict, name)
+		}
+	} else if recordType == "A" || recordType == "AAAA" {
+		hasCNAME, err := d.HasRecordsForName(tx, existing.ZoneID, name, []string{"CNAME"})
+		if err != nil {
+			return nil, fmt.Errorf("check cname exclusivity: %w", err)
+		}
+		if hasCNAME {
+			return nil, fmt.Errorf("%w: A/AAAA record conflicts with existing CNAME record for %q", ErrConflict, name)
+		}
+	}
+
+	now := time.Now().UTC().Format("2006-01-02T15:04:05Z")
+	_, err = tx.Exec(`UPDATE records SET name = ?, type = ?, value = ?, ttl = ?, updated_at = ? WHERE id = ?`,
+		name, recordType, value, ttl, now, id)
+	if err != nil {
+		if strings.Contains(err.Error(), "UNIQUE constraint") {
+			return nil, fmt.Errorf("%w: record already exists", ErrConflict)
+		}
+		return nil, fmt.Errorf("update record: %w", err)
+	}
+
+	if err := d.BumpSerial(tx, existing.ZoneID); err != nil {
+		return nil, fmt.Errorf("bump serial: %w", err)
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, fmt.Errorf("commit: %w", err)
+	}
+
+	return d.GetRecord(id)
+}
+
+// DeleteRecord deletes a record and bumps the zone serial.
+func (d *DB) DeleteRecord(id int64) error {
+	existing, err := d.GetRecord(id)
+	if err != nil {
+		return err
+	}
+
+	tx, err := d.Begin()
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	_, err = tx.Exec(`DELETE FROM records WHERE id = ?`, id)
+	if err != nil {
+		return fmt.Errorf("delete record: %w", err)
+	}
+
+	if err := d.BumpSerial(tx, existing.ZoneID); err != nil {
+		return fmt.Errorf("bump serial: %w", err)
+	}
+
+	return tx.Commit()
+}
+
+// validateRecordValue checks that a record value is valid for its type.
+func validateRecordValue(recordType, value string) error {
+	switch recordType {
+	case "A":
+		ip := net.ParseIP(value)
+		if ip == nil || ip.To4() == nil {
+			return fmt.Errorf("invalid IPv4 address: %q", value)
+		}
+	case "AAAA":
+		ip := net.ParseIP(value)
+		if ip == nil || ip.To4() != nil {
+			return fmt.Errorf("invalid IPv6 address: %q", value)
+		}
+	case "CNAME":
+		if !strings.HasSuffix(value, ".") {
+			return fmt.Errorf("CNAME value must be a fully-qualified domain name ending with '.': %q", value)
+		}
+	default:
+		return fmt.Errorf("unsupported record type: %q", recordType)
+	}
+	return nil
+}

internal/db/records_test.go

@@ -0,0 +1,289 @@
+package db
+
+import (
+	"errors"
+	"testing"
+)
+
+func createTestZone(t *testing.T, db *DB) *Zone {
+	t.Helper()
+	zone, err := db.CreateZone("test.example.com", "ns.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+	return zone
+}
+
+func TestCreateRecordA(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	record, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+	if record.Name != "metacrypt" {
+		t.Fatalf("got name %q, want %q", record.Name, "metacrypt")
+	}
+	if record.Type != "A" {
+		t.Fatalf("got type %q, want %q", record.Type, "A")
+	}
+	if record.Value != "192.168.88.181" {
+		t.Fatalf("got value %q, want %q", record.Value, "192.168.88.181")
+	}
+}
+
+func TestCreateRecordAAAA(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	record, err := db.CreateRecord("test.example.com", "metacrypt", "AAAA", "2001:db8::1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+	if record.Type != "AAAA" {
+		t.Fatalf("got type %q, want %q", record.Type, "AAAA")
+	}
+}
+
+func TestCreateRecordCNAME(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	record, err := db.CreateRecord("test.example.com", "alias", "CNAME", "rift.mcp.metacircular.net.", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+	if record.Type != "CNAME" {
+		t.Fatalf("got type %q, want %q", record.Type, "CNAME")
+	}
+}
+
+func TestCreateRecordInvalidIP(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	_, err := db.CreateRecord("test.example.com", "bad", "A", "not-an-ip", 300)
+	if err == nil {
+		t.Fatal("expected error for invalid IPv4")
+	}
+}
+
+func TestCreateRecordCNAMEExclusivity(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	// Create an A record first.
+	_, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create A record: %v", err)
+	}
+
+	// Trying to add a CNAME for the same name should fail.
+	_, err = db.CreateRecord("test.example.com", "metacrypt", "CNAME", "rift.mcp.metacircular.net.", 300)
+	if !errors.Is(err, ErrConflict) {
+		t.Fatalf("expected ErrConflict, got %v", err)
+	}
+}
+
+func TestCreateRecordCNAMEExclusivityReverse(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	// Create a CNAME record first.
+	_, err := db.CreateRecord("test.example.com", "alias", "CNAME", "rift.mcp.metacircular.net.", 300)
+	if err != nil {
+		t.Fatalf("create CNAME record: %v", err)
+	}
+
+	// Trying to add an A record for the same name should fail.
+	_, err = db.CreateRecord("test.example.com", "alias", "A", "192.168.88.181", 300)
+	if !errors.Is(err, ErrConflict) {
+		t.Fatalf("expected ErrConflict, got %v", err)
+	}
+}
+
+func TestCreateRecordBumpsSerial(t *testing.T) {
+	db := openTestDB(t)
+	zone := createTestZone(t, db)
+	originalSerial := zone.Serial
+
+	_, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	updated, err := db.GetZone("test.example.com")
+	if err != nil {
+		t.Fatalf("get zone: %v", err)
+	}
+	if updated.Serial <= originalSerial {
+		t.Fatalf("serial should have bumped: %d <= %d", updated.Serial, originalSerial)
+	}
+}
+
+func TestListRecords(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	_, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record 1: %v", err)
+	}
+	_, err = db.CreateRecord("test.example.com", "metacrypt", "A", "100.95.252.120", 300)
+	if err != nil {
+		t.Fatalf("create record 2: %v", err)
+	}
+	_, err = db.CreateRecord("test.example.com", "mcr", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record 3: %v", err)
+	}
+
+	// List all records.
+	records, err := db.ListRecords("test.example.com", "", "")
+	if err != nil {
+		t.Fatalf("list records: %v", err)
+	}
+	if len(records) != 3 {
+		t.Fatalf("got %d records, want 3", len(records))
+	}
+
+	// Filter by name.
+	records, err = db.ListRecords("test.example.com", "metacrypt", "")
+	if err != nil {
+		t.Fatalf("list records by name: %v", err)
+	}
+	if len(records) != 2 {
+		t.Fatalf("got %d records, want 2", len(records))
+	}
+
+	// Filter by type.
+	records, err = db.ListRecords("test.example.com", "", "A")
+	if err != nil {
+		t.Fatalf("list records by type: %v", err)
+	}
+	if len(records) != 3 {
+		t.Fatalf("got %d records, want 3", len(records))
+	}
+}
+
+func TestUpdateRecord(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	record, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	updated, err := db.UpdateRecord(record.ID, "metacrypt", "A", "10.0.0.1", 600)
+	if err != nil {
+		t.Fatalf("update record: %v", err)
+	}
+	if updated.Value != "10.0.0.1" {
+		t.Fatalf("got value %q, want %q", updated.Value, "10.0.0.1")
+	}
+	if updated.TTL != 600 {
+		t.Fatalf("got ttl %d, want 600", updated.TTL)
+	}
+}
+
+func TestDeleteRecord(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	record, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	if err := db.DeleteRecord(record.ID); err != nil {
+		t.Fatalf("delete record: %v", err)
+	}
+
+	_, err = db.GetRecord(record.ID)
+	if !errors.Is(err, ErrNotFound) {
+		t.Fatalf("expected ErrNotFound after delete, got %v", err)
+	}
+}
+
+func TestDeleteRecordBumpsSerial(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	record, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	zone, err := db.GetZone("test.example.com")
+	if err != nil {
+		t.Fatalf("get zone: %v", err)
+	}
+	serialBefore := zone.Serial
+
+	if err := db.DeleteRecord(record.ID); err != nil {
+		t.Fatalf("delete record: %v", err)
+	}
+
+	zone, err = db.GetZone("test.example.com")
+	if err != nil {
+		t.Fatalf("get zone after delete: %v", err)
+	}
+	if zone.Serial <= serialBefore {
+		t.Fatalf("serial should have bumped: %d <= %d", zone.Serial, serialBefore)
+	}
+}
+
+func TestLookupRecords(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	_, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	records, err := db.LookupRecords("test.example.com", "metacrypt", "A")
+	if err != nil {
+		t.Fatalf("lookup records: %v", err)
+	}
+	if len(records) != 1 {
+		t.Fatalf("got %d records, want 1", len(records))
+	}
+	if records[0].Value != "192.168.88.181" {
+		t.Fatalf("got value %q, want %q", records[0].Value, "192.168.88.181")
+	}
+}
+
+func TestCreateRecordCNAMEMissingDot(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	_, err := db.CreateRecord("test.example.com", "alias", "CNAME", "rift.mcp.metacircular.net", 300)
+	if err == nil {
+		t.Fatal("expected error for CNAME without trailing dot")
+	}
+}
+
+func TestMultipleARecords(t *testing.T) {
+	db := openTestDB(t)
+	createTestZone(t, db)
+
+	_, err := db.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create first A record: %v", err)
+	}
+	_, err = db.CreateRecord("test.example.com", "metacrypt", "A", "100.95.252.120", 300)
+	if err != nil {
+		t.Fatalf("create second A record: %v", err)
+	}
+
+	records, err := db.LookupRecords("test.example.com", "metacrypt", "A")
+	if err != nil {
+		t.Fatalf("lookup records: %v", err)
+	}
+	if len(records) != 2 {
+		t.Fatalf("got %d records, want 2", len(records))
+	}
+}

internal/db/zones.go

@@ -0,0 +1,182 @@
+package db
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Zone represents a DNS zone stored in the database.
+type Zone struct {
+	ID         int64
+	Name       string
+	PrimaryNS  string
+	AdminEmail string
+	Refresh    int
+	Retry      int
+	Expire     int
+	MinimumTTL int
+	Serial     int64
+	CreatedAt  string
+	UpdatedAt  string
+}
+
+// ErrNotFound is returned when a requested resource does not exist.
+var ErrNotFound = errors.New("not found")
+
+// ErrConflict is returned when a write conflicts with existing data.
+var ErrConflict = errors.New("conflict")
+
+// ListZones returns all zones ordered by name.
+func (d *DB) ListZones() ([]Zone, error) {
+	rows, err := d.Query(`SELECT id, name, primary_ns, admin_email, refresh, retry, expire, minimum_ttl, serial, created_at, updated_at FROM zones ORDER BY name`)
+	if err != nil {
+		return nil, fmt.Errorf("list zones: %w", err)
+	}
+	defer rows.Close()
+
+	var zones []Zone
+	for rows.Next() {
+		var z Zone
+		if err := rows.Scan(&z.ID, &z.Name, &z.PrimaryNS, &z.AdminEmail, &z.Refresh, &z.Retry, &z.Expire, &z.MinimumTTL, &z.Serial, &z.CreatedAt, &z.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("scan zone: %w", err)
+		}
+		zones = append(zones, z)
+	}
+	return zones, rows.Err()
+}
+
+// GetZone returns a zone by name (case-insensitive).
+func (d *DB) GetZone(name string) (*Zone, error) {
+	name = strings.ToLower(strings.TrimSuffix(name, "."))
+	var z Zone
+	err := d.QueryRow(`SELECT id, name, primary_ns, admin_email, refresh, retry, expire, minimum_ttl, serial, created_at, updated_at FROM zones WHERE name = ?`, name).
+		Scan(&z.ID, &z.Name, &z.PrimaryNS, &z.AdminEmail, &z.Refresh, &z.Retry, &z.Expire, &z.MinimumTTL, &z.Serial, &z.CreatedAt, &z.UpdatedAt)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("get zone: %w", err)
+	}
+	return &z, nil
+}
+
+// GetZoneByID returns a zone by ID.
+func (d *DB) GetZoneByID(id int64) (*Zone, error) {
+	var z Zone
+	err := d.QueryRow(`SELECT id, name, primary_ns, admin_email, refresh, retry, expire, minimum_ttl, serial, created_at, updated_at FROM zones WHERE id = ?`, id).
+		Scan(&z.ID, &z.Name, &z.PrimaryNS, &z.AdminEmail, &z.Refresh, &z.Retry, &z.Expire, &z.MinimumTTL, &z.Serial, &z.CreatedAt, &z.UpdatedAt)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("get zone by id: %w", err)
+	}
+	return &z, nil
+}
+
+// CreateZone inserts a new zone and returns it with the generated serial.
+func (d *DB) CreateZone(name, primaryNS, adminEmail string, refresh, retry, expire, minimumTTL int) (*Zone, error) {
+	name = strings.ToLower(strings.TrimSuffix(name, "."))
+	serial := nextSerial(0)
+
+	res, err := d.Exec(`INSERT INTO zones (name, primary_ns, admin_email, refresh, retry, expire, minimum_ttl, serial) VALUES (?, ?, ?, ?, ?, ?, ?, ?)`,
+		name, primaryNS, adminEmail, refresh, retry, expire, minimumTTL, serial)
+	if err != nil {
+		if strings.Contains(err.Error(), "UNIQUE constraint") {
+			return nil, fmt.Errorf("%w: zone %q already exists", ErrConflict, name)
+		}
+		return nil, fmt.Errorf("create zone: %w", err)
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return nil, fmt.Errorf("create zone: last insert id: %w", err)
+	}
+
+	return d.GetZoneByID(id)
+}
+
+// UpdateZone updates a zone's SOA parameters and bumps the serial.
+func (d *DB) UpdateZone(name, primaryNS, adminEmail string, refresh, retry, expire, minimumTTL int) (*Zone, error) {
+	name = strings.ToLower(strings.TrimSuffix(name, "."))
+
+	zone, err := d.GetZone(name)
+	if err != nil {
+		return nil, err
+	}
+
+	serial := nextSerial(zone.Serial)
+	now := time.Now().UTC().Format("2006-01-02T15:04:05Z")
+
+	_, err = d.Exec(`UPDATE zones SET primary_ns = ?, admin_email = ?, refresh = ?, retry = ?, expire = ?, minimum_ttl = ?, serial = ?, updated_at = ? WHERE id = ?`,
+		primaryNS, adminEmail, refresh, retry, expire, minimumTTL, serial, now, zone.ID)
+	if err != nil {
+		return nil, fmt.Errorf("update zone: %w", err)
+	}
+
+	return d.GetZoneByID(zone.ID)
+}
+
+// DeleteZone deletes a zone and all its records.
+func (d *DB) DeleteZone(name string) error {
+	name = strings.ToLower(strings.TrimSuffix(name, "."))
+	res, err := d.Exec(`DELETE FROM zones WHERE name = ?`, name)
+	if err != nil {
+		return fmt.Errorf("delete zone: %w", err)
+	}
+	n, err := res.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("delete zone: rows affected: %w", err)
+	}
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+// BumpSerial increments the serial for a zone within a transaction.
+func (d *DB) BumpSerial(tx *sql.Tx, zoneID int64) error {
+	var current int64
+	if err := tx.QueryRow(`SELECT serial FROM zones WHERE id = ?`, zoneID).Scan(&current); err != nil {
+		return fmt.Errorf("read serial: %w", err)
+	}
+	serial := nextSerial(current)
+	now := time.Now().UTC().Format("2006-01-02T15:04:05Z")
+	_, err := tx.Exec(`UPDATE zones SET serial = ?, updated_at = ? WHERE id = ?`, serial, now, zoneID)
+	return err
+}
+
+// ZoneNames returns all zone names for the DNS handler.
+func (d *DB) ZoneNames() ([]string, error) {
+	rows, err := d.Query(`SELECT name FROM zones ORDER BY name`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var names []string
+	for rows.Next() {
+		var name string
+		if err := rows.Scan(&name); err != nil {
+			return nil, err
+		}
+		names = append(names, name)
+	}
+	return names, rows.Err()
+}
+
+// nextSerial computes the next SOA serial in YYYYMMDDNN format.
+func nextSerial(current int64) int64 {
+	today := time.Now().UTC()
+	datePrefix, _ := strconv.ParseInt(today.Format("20060102"), 10, 64)
+	datePrefix *= 100 // YYYYMMDD00
+
+	if current >= datePrefix {
+		return current + 1
+	}
+	return datePrefix + 1
+}

internal/db/zones_test.go

@@ -0,0 +1,168 @@
+package db
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func openTestDB(t *testing.T) *DB {
+	t.Helper()
+	dir := t.TempDir()
+	database, err := Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := database.Migrate(); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	return database
+}
+
+func TestCreateZone(t *testing.T) {
+	db := openTestDB(t)
+
+	zone, err := db.CreateZone("example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+	if zone.Name != "example.com" {
+		t.Fatalf("got name %q, want %q", zone.Name, "example.com")
+	}
+	if zone.Serial == 0 {
+		t.Fatal("serial should not be zero")
+	}
+	if zone.PrimaryNS != "ns1.example.com." {
+		t.Fatalf("got primary_ns %q, want %q", zone.PrimaryNS, "ns1.example.com.")
+	}
+}
+
+func TestCreateZoneDuplicate(t *testing.T) {
+	db := openTestDB(t)
+
+	_, err := db.CreateZone("example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+
+	_, err = db.CreateZone("example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err == nil {
+		t.Fatal("expected error for duplicate zone")
+	}
+}
+
+func TestCreateZoneNormalization(t *testing.T) {
+	db := openTestDB(t)
+
+	zone, err := db.CreateZone("Example.COM.", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+	if zone.Name != "example.com" {
+		t.Fatalf("got name %q, want %q", zone.Name, "example.com")
+	}
+}
+
+func TestListZones(t *testing.T) {
+	db := openTestDB(t)
+
+	_, err := db.CreateZone("b.example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone b: %v", err)
+	}
+	_, err = db.CreateZone("a.example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone a: %v", err)
+	}
+
+	zones, err := db.ListZones()
+	if err != nil {
+		t.Fatalf("list zones: %v", err)
+	}
+	// 2 seed zones + 2 created = 4 total. Verify ours are present and ordered.
+	if len(zones) != 4 {
+		t.Fatalf("got %d zones, want 4", len(zones))
+	}
+	if zones[0].Name != "a.example.com" {
+		t.Fatalf("zones should be ordered by name, got %q first", zones[0].Name)
+	}
+}
+
+func TestGetZone(t *testing.T) {
+	db := openTestDB(t)
+
+	_, err := db.CreateZone("example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+
+	zone, err := db.GetZone("example.com")
+	if err != nil {
+		t.Fatalf("get zone: %v", err)
+	}
+	if zone.Name != "example.com" {
+		t.Fatalf("got name %q, want %q", zone.Name, "example.com")
+	}
+
+	_, err = db.GetZone("nonexistent.com")
+	if err != ErrNotFound {
+		t.Fatalf("expected ErrNotFound, got %v", err)
+	}
+}
+
+func TestUpdateZone(t *testing.T) {
+	db := openTestDB(t)
+
+	original, err := db.CreateZone("example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+
+	updated, err := db.UpdateZone("example.com", "ns2.example.com.", "newadmin.example.com.", 7200, 1200, 172800, 600)
+	if err != nil {
+		t.Fatalf("update zone: %v", err)
+	}
+
+	if updated.PrimaryNS != "ns2.example.com." {
+		t.Fatalf("got primary_ns %q, want %q", updated.PrimaryNS, "ns2.example.com.")
+	}
+	if updated.Serial <= original.Serial {
+		t.Fatalf("serial should have incremented: %d <= %d", updated.Serial, original.Serial)
+	}
+}
+
+func TestDeleteZone(t *testing.T) {
+	db := openTestDB(t)
+
+	_, err := db.CreateZone("example.com", "ns1.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+
+	if err := db.DeleteZone("example.com"); err != nil {
+		t.Fatalf("delete zone: %v", err)
+	}
+
+	_, err = db.GetZone("example.com")
+	if err != ErrNotFound {
+		t.Fatalf("expected ErrNotFound after delete, got %v", err)
+	}
+
+	if err := db.DeleteZone("nonexistent.com"); err != ErrNotFound {
+		t.Fatalf("expected ErrNotFound for nonexistent zone, got %v", err)
+	}
+}
+
+func TestNextSerial(t *testing.T) {
+	// A zero serial should produce a date-based serial.
+	s1 := nextSerial(0)
+	if s1 < 2026032600 {
+		t.Fatalf("serial %d seems too low", s1)
+	}
+
+	// Incrementing should increase.
+	s2 := nextSerial(s1)
+	if s2 != s1+1 {
+		t.Fatalf("expected %d, got %d", s1+1, s2)
+	}
+}

internal/dns/cache.go

@@ -0,0 +1,67 @@
+package dns
+
+import (
+	"sync"
+	"time"
+
+	"github.com/miekg/dns"
+)
+
+type cacheKey struct {
+	Name  string
+	Qtype uint16
+	Class uint16
+}
+
+type cacheEntry struct {
+	msg       *dns.Msg
+	expiresAt time.Time
+}
+
+// Cache is a thread-safe in-memory DNS response cache with TTL-based expiry.
+type Cache struct {
+	mu      sync.RWMutex
+	entries map[cacheKey]*cacheEntry
+}
+
+// NewCache creates an empty DNS cache.
+func NewCache() *Cache {
+	return &Cache{
+		entries: make(map[cacheKey]*cacheEntry),
+	}
+}
+
+// Get returns a cached response if it exists and has not expired.
+func (c *Cache) Get(name string, qtype, class uint16) *dns.Msg {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+
+	key := cacheKey{Name: name, Qtype: qtype, Class: class}
+	entry, ok := c.entries[key]
+	if !ok || time.Now().After(entry.expiresAt) {
+		return nil
+	}
+	return entry.msg
+}
+
+// Set stores a DNS response in the cache with the given TTL.
+func (c *Cache) Set(name string, qtype, class uint16, msg *dns.Msg, ttl time.Duration) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	key := cacheKey{Name: name, Qtype: qtype, Class: class}
+	c.entries[key] = &cacheEntry{
+		msg:       msg.Copy(),
+		expiresAt: time.Now().Add(ttl),
+	}
+
+	// Lazy eviction: clean up expired entries if cache is growing.
+	if len(c.entries) > 1000 {
+		now := time.Now()
+		for k, v := range c.entries {
+			if now.After(v.expiresAt) {
+				delete(c.entries, k)
+			}
+		}
+	}
+}

internal/dns/cache_test.go

@@ -0,0 +1,81 @@
+package dns
+
+import (
+	"testing"
+	"time"
+
+	"github.com/miekg/dns"
+)
+
+func TestCacheSetGet(t *testing.T) {
+	c := NewCache()
+
+	msg := new(dns.Msg)
+	msg.SetQuestion("example.com.", dns.TypeA)
+	msg.Answer = append(msg.Answer, &dns.A{
+		Hdr: dns.RR_Header{Name: "example.com.", Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 60},
+		A:   []byte{1, 2, 3, 4},
+	})
+
+	c.Set("example.com.", dns.TypeA, dns.ClassINET, msg, 5*time.Second)
+
+	cached := c.Get("example.com.", dns.TypeA, dns.ClassINET)
+	if cached == nil {
+		t.Fatal("expected cached response")
+	}
+	if len(cached.Answer) != 1 {
+		t.Fatalf("got %d answers, want 1", len(cached.Answer))
+	}
+}
+
+func TestCacheMiss(t *testing.T) {
+	c := NewCache()
+
+	cached := c.Get("example.com.", dns.TypeA, dns.ClassINET)
+	if cached != nil {
+		t.Fatal("expected nil for cache miss")
+	}
+}
+
+func TestCacheExpiry(t *testing.T) {
+	c := NewCache()
+
+	msg := new(dns.Msg)
+	msg.SetQuestion("example.com.", dns.TypeA)
+
+	c.Set("example.com.", dns.TypeA, dns.ClassINET, msg, 1*time.Millisecond)
+	time.Sleep(2 * time.Millisecond)
+
+	cached := c.Get("example.com.", dns.TypeA, dns.ClassINET)
+	if cached != nil {
+		t.Fatal("expected nil for expired entry")
+	}
+}
+
+func TestCacheDifferentTypes(t *testing.T) {
+	c := NewCache()
+
+	msgA := new(dns.Msg)
+	msgA.SetQuestion("example.com.", dns.TypeA)
+	c.Set("example.com.", dns.TypeA, dns.ClassINET, msgA, 5*time.Second)
+
+	msgAAAA := new(dns.Msg)
+	msgAAAA.SetQuestion("example.com.", dns.TypeAAAA)
+	c.Set("example.com.", dns.TypeAAAA, dns.ClassINET, msgAAAA, 5*time.Second)
+
+	cachedA := c.Get("example.com.", dns.TypeA, dns.ClassINET)
+	if cachedA == nil {
+		t.Fatal("expected cached A response")
+	}
+
+	cachedAAAA := c.Get("example.com.", dns.TypeAAAA, dns.ClassINET)
+	if cachedAAAA == nil {
+		t.Fatal("expected cached AAAA response")
+	}
+
+	// Different type should not match.
+	cachedMX := c.Get("example.com.", dns.TypeMX, dns.ClassINET)
+	if cachedMX != nil {
+		t.Fatal("expected nil for uncached type")
+	}
+}

internal/dns/forwarder.go

@@ -0,0 +1,87 @@
+package dns
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/miekg/dns"
+)
+
+// Forwarder handles forwarding DNS queries to upstream resolvers.
+type Forwarder struct {
+	upstreams []string
+	client    *dns.Client
+	cache     *Cache
+}
+
+// NewForwarder creates a Forwarder with the given upstream addresses.
+func NewForwarder(upstreams []string) *Forwarder {
+	return &Forwarder{
+		upstreams: upstreams,
+		client: &dns.Client{
+			Timeout: 2 * time.Second,
+		},
+		cache: NewCache(),
+	}
+}
+
+// Forward sends a query to upstream resolvers and returns the response.
+// Responses are cached by (qname, qtype, qclass) with TTL-based expiry.
+func (f *Forwarder) Forward(r *dns.Msg) (*dns.Msg, error) {
+	if len(r.Question) == 0 {
+		return nil, fmt.Errorf("empty question")
+	}
+
+	q := r.Question[0]
+
+	// Check cache.
+	if cached := f.cache.Get(q.Name, q.Qtype, q.Qclass); cached != nil {
+		return cached.Copy(), nil
+	}
+
+	// Try each upstream in order.
+	var lastErr error
+	for _, upstream := range f.upstreams {
+		resp, _, err := f.client.Exchange(r, upstream)
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		// Don't cache SERVFAIL or REFUSED.
+		if resp.Rcode != dns.RcodeServerFailure && resp.Rcode != dns.RcodeRefused {
+			ttl := minTTL(resp)
+			if ttl > 300 {
+				ttl = 300
+			}
+			if ttl > 0 {
+				f.cache.Set(q.Name, q.Qtype, q.Qclass, resp, time.Duration(ttl)*time.Second)
+			}
+		}
+
+		return resp, nil
+	}
+
+	return nil, fmt.Errorf("all upstreams failed: %w", lastErr)
+}
+
+// minTTL returns the minimum TTL from all resource records in a response.
+func minTTL(msg *dns.Msg) uint32 {
+	var min uint32
+	first := true
+
+	for _, sections := range [][]dns.RR{msg.Answer, msg.Ns, msg.Extra} {
+		for _, rr := range sections {
+			ttl := rr.Header().Ttl
+			if first || ttl < min {
+				min = ttl
+				first = false
+			}
+		}
+	}
+
+	if first {
+		return 60 // No records; default to 60s.
+	}
+	return min
+}

internal/dns/server.go

@@ -0,0 +1,280 @@
+// Package dns implements the authoritative DNS server for MCNS.
+// It serves records from SQLite for authoritative zones and forwards
+// all other queries to configured upstream resolvers.
+package dns
+
+import (
+	"log/slog"
+	"net"
+	"strings"
+
+	"github.com/miekg/dns"
+
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+// Server is the MCNS DNS server. It listens on both UDP and TCP.
+type Server struct {
+	db        *db.DB
+	forwarder *Forwarder
+	logger    *slog.Logger
+	udp       *dns.Server
+	tcp       *dns.Server
+}
+
+// New creates a DNS server that serves records from the database and
+// forwards non-authoritative queries to the given upstreams.
+func New(database *db.DB, upstreams []string, logger *slog.Logger) *Server {
+	s := &Server{
+		db:        database,
+		forwarder: NewForwarder(upstreams),
+		logger:    logger,
+	}
+
+	mux := dns.NewServeMux()
+	mux.HandleFunc(".", s.handleQuery)
+
+	s.udp = &dns.Server{Handler: mux, Net: "udp"}
+	s.tcp = &dns.Server{Handler: mux, Net: "tcp"}
+
+	return s
+}
+
+// ListenAndServe starts the DNS server on the given address for both
+// UDP and TCP. It blocks until Shutdown is called.
+func (s *Server) ListenAndServe(addr string) error {
+	s.udp.Addr = addr
+	s.tcp.Addr = addr
+
+	errCh := make(chan error, 2)
+
+	go func() {
+		s.logger.Info("dns server listening", "addr", addr, "proto", "udp")
+		errCh <- s.udp.ListenAndServe()
+	}()
+	go func() {
+		s.logger.Info("dns server listening", "addr", addr, "proto", "tcp")
+		errCh <- s.tcp.ListenAndServe()
+	}()
+
+	return <-errCh
+}
+
+// Shutdown gracefully stops the DNS server.
+func (s *Server) Shutdown() {
+	_ = s.udp.Shutdown()
+	_ = s.tcp.Shutdown()
+}
+
+// handleQuery is the main DNS query handler. It checks if the query
+// falls within an authoritative zone and either serves from the database
+// or forwards to upstream.
+func (s *Server) handleQuery(w dns.ResponseWriter, r *dns.Msg) {
+	if len(r.Question) == 0 {
+		s.writeResponse(w, r, dns.RcodeFormatError, nil, nil)
+		return
+	}
+
+	q := r.Question[0]
+	qname := strings.ToLower(q.Name)
+
+	// Find the authoritative zone for this query.
+	zone := s.findZone(qname)
+	if zone == nil {
+		// Not authoritative — forward to upstream.
+		s.forwardQuery(w, r)
+		return
+	}
+
+	s.handleAuthoritativeQuery(w, r, zone, qname, q.Qtype)
+}
+
+// findZone returns the best matching zone for the query name, or nil.
+func (s *Server) findZone(qname string) *db.Zone {
+	// Walk up the domain labels to find the longest matching zone.
+	name := strings.TrimSuffix(qname, ".")
+	parts := strings.Split(name, ".")
+
+	for i := range parts {
+		candidate := strings.Join(parts[i:], ".")
+		zone, err := s.db.GetZone(candidate)
+		if err == nil {
+			return zone
+		}
+	}
+	return nil
+}
+
+// handleAuthoritativeQuery serves a query from the database.
+func (s *Server) handleAuthoritativeQuery(w dns.ResponseWriter, r *dns.Msg, zone *db.Zone, qname string, qtype uint16) {
+	// Extract the record name relative to the zone.
+	zoneFQDN := zone.Name + "."
+	var relName string
+	if qname == zoneFQDN {
+		relName = "@"
+	} else {
+		relName = strings.TrimSuffix(qname, "."+zoneFQDN)
+	}
+
+	// Handle SOA queries.
+	if qtype == dns.TypeSOA || relName == "@" && qtype == dns.TypeSOA {
+		soa := s.buildSOA(zone)
+		s.writeResponse(w, r, dns.RcodeSuccess, []dns.RR{soa}, nil)
+		return
+	}
+
+	// Handle NS queries at the zone apex.
+	if qtype == dns.TypeNS && relName == "@" {
+		ns := &dns.NS{
+			Hdr: dns.RR_Header{Name: zoneFQDN, Rrtype: dns.TypeNS, Class: dns.ClassINET, Ttl: uint32(zone.MinimumTTL)},
+			Ns:  zone.PrimaryNS,
+		}
+		s.writeResponse(w, r, dns.RcodeSuccess, []dns.RR{ns}, nil)
+		return
+	}
+
+	// Look up the requested record type.
+	var answers []dns.RR
+	var lookupType string
+
+	switch qtype {
+	case dns.TypeA:
+		lookupType = "A"
+	case dns.TypeAAAA:
+		lookupType = "AAAA"
+	case dns.TypeCNAME:
+		lookupType = "CNAME"
+	default:
+		// For unsupported types, check if the name exists at all.
+		// If it does, return empty answer. If not, NXDOMAIN.
+		exists, _ := s.nameExists(zone.Name, relName)
+		if exists {
+			s.writeResponse(w, r, dns.RcodeSuccess, nil, []dns.RR{s.buildSOA(zone)})
+		} else {
+			s.writeResponse(w, r, dns.RcodeNameError, nil, []dns.RR{s.buildSOA(zone)})
+		}
+		return
+	}
+
+	records, err := s.db.LookupRecords(zone.Name, relName, lookupType)
+	if err != nil {
+		s.logger.Error("dns lookup failed", "zone", zone.Name, "name", relName, "type", lookupType, "error", err)
+		s.writeResponse(w, r, dns.RcodeServerFailure, nil, nil)
+		return
+	}
+
+	// If no direct records, check for CNAME.
+	if len(records) == 0 && (qtype == dns.TypeA || qtype == dns.TypeAAAA) {
+		cnameRecords, err := s.db.LookupCNAME(zone.Name, relName)
+		if err == nil && len(cnameRecords) > 0 {
+			for _, rec := range cnameRecords {
+				answers = append(answers, &dns.CNAME{
+					Hdr:    dns.RR_Header{Name: qname, Rrtype: dns.TypeCNAME, Class: dns.ClassINET, Ttl: uint32(rec.TTL)},
+					Target: rec.Value,
+				})
+			}
+			s.writeResponse(w, r, dns.RcodeSuccess, answers, nil)
+			return
+		}
+	}
+
+	if len(records) == 0 {
+		// Name might still exist with other record types.
+		exists, _ := s.nameExists(zone.Name, relName)
+		if exists {
+			// NODATA: name exists but no records of requested type.
+			s.writeResponse(w, r, dns.RcodeSuccess, nil, []dns.RR{s.buildSOA(zone)})
+		} else {
+			// NXDOMAIN: name does not exist.
+			s.writeResponse(w, r, dns.RcodeNameError, nil, []dns.RR{s.buildSOA(zone)})
+		}
+		return
+	}
+
+	for _, rec := range records {
+		rr := s.recordToRR(qname, rec)
+		if rr != nil {
+			answers = append(answers, rr)
+		}
+	}
+
+	s.writeResponse(w, r, dns.RcodeSuccess, answers, nil)
+}
+
+// nameExists checks if any records exist for a name in a zone.
+func (s *Server) nameExists(zoneName, name string) (bool, error) {
+	records, err := s.db.ListRecords(zoneName, name, "")
+	if err != nil {
+		return false, err
+	}
+	return len(records) > 0, nil
+}
+
+// recordToRR converts a database Record to a dns.RR.
+func (s *Server) recordToRR(qname string, rec db.Record) dns.RR {
+	hdr := dns.RR_Header{Name: qname, Class: dns.ClassINET, Ttl: uint32(rec.TTL)}
+
+	switch rec.Type {
+	case "A":
+		hdr.Rrtype = dns.TypeA
+		return &dns.A{Hdr: hdr, A: parseIP(rec.Value)}
+	case "AAAA":
+		hdr.Rrtype = dns.TypeAAAA
+		return &dns.AAAA{Hdr: hdr, AAAA: parseIP(rec.Value)}
+	case "CNAME":
+		hdr.Rrtype = dns.TypeCNAME
+		return &dns.CNAME{Hdr: hdr, Target: rec.Value}
+	}
+	return nil
+}
+
+// buildSOA constructs a SOA record for the given zone.
+func (s *Server) buildSOA(zone *db.Zone) *dns.SOA {
+	return &dns.SOA{
+		Hdr:     dns.RR_Header{Name: zone.Name + ".", Rrtype: dns.TypeSOA, Class: dns.ClassINET, Ttl: uint32(zone.MinimumTTL)},
+		Ns:      zone.PrimaryNS,
+		Mbox:    zone.AdminEmail,
+		Serial:  uint32(zone.Serial),
+		Refresh: uint32(zone.Refresh),
+		Retry:   uint32(zone.Retry),
+		Expire:  uint32(zone.Expire),
+		Minttl:  uint32(zone.MinimumTTL),
+	}
+}
+
+// writeResponse constructs and writes a DNS response.
+func (s *Server) writeResponse(w dns.ResponseWriter, r *dns.Msg, rcode int, answer []dns.RR, ns []dns.RR) {
+	m := new(dns.Msg)
+	m.SetReply(r)
+	m.Authoritative = true
+	m.Rcode = rcode
+	m.Answer = answer
+	m.Ns = ns
+
+	if err := w.WriteMsg(m); err != nil {
+		s.logger.Error("dns write failed", "error", err)
+	}
+}
+
+// forwardQuery forwards a DNS query to upstream resolvers.
+func (s *Server) forwardQuery(w dns.ResponseWriter, r *dns.Msg) {
+	resp, err := s.forwarder.Forward(r)
+	if err != nil {
+		s.logger.Debug("dns forward failed", "error", err)
+		m := new(dns.Msg)
+		m.SetReply(r)
+		m.Rcode = dns.RcodeServerFailure
+		_ = w.WriteMsg(m)
+		return
+	}
+
+	resp.Id = r.Id
+	if err := w.WriteMsg(resp); err != nil {
+		s.logger.Error("dns write failed", "error", err)
+	}
+}
+
+// parseIP parses an IP address string into a net.IP.
+func parseIP(s string) net.IP {
+	return net.ParseIP(s)
+}

internal/dns/server_test.go

@@ -0,0 +1,142 @@
+package dns
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/miekg/dns"
+
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+	"log/slog"
+)
+
+func openTestDB(t *testing.T) *db.DB {
+	t.Helper()
+	dir := t.TempDir()
+	database, err := db.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := database.Migrate(); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	return database
+}
+
+func setupTestServer(t *testing.T) (*Server, *db.DB) {
+	t.Helper()
+	database := openTestDB(t)
+	logger := slog.Default()
+
+	_, err := database.CreateZone("test.example.com", "ns.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "metacrypt", "A", "192.168.88.181", 300)
+	if err != nil {
+		t.Fatalf("create A record: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "metacrypt", "A", "100.95.252.120", 300)
+	if err != nil {
+		t.Fatalf("create A record 2: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "mcr", "AAAA", "2001:db8::1", 300)
+	if err != nil {
+		t.Fatalf("create AAAA record: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "alias", "CNAME", "metacrypt.test.example.com.", 300)
+	if err != nil {
+		t.Fatalf("create CNAME record: %v", err)
+	}
+
+	srv := New(database, []string{"1.1.1.1:53"}, logger)
+	return srv, database
+}
+
+func TestFindZone(t *testing.T) {
+	srv, _ := setupTestServer(t)
+
+	zone := srv.findZone("metacrypt.test.example.com.")
+	if zone == nil {
+		t.Fatal("expected to find zone")
+	}
+	if zone.Name != "test.example.com" {
+		t.Fatalf("got zone %q, want %q", zone.Name, "test.example.com")
+	}
+
+	zone = srv.findZone("nonexistent.com.")
+	if zone != nil {
+		t.Fatal("expected nil for nonexistent zone")
+	}
+}
+
+func TestBuildSOA(t *testing.T) {
+	srv, database := setupTestServer(t)
+	zone, err := database.GetZone("test.example.com")
+	if err != nil {
+		t.Fatalf("get zone: %v", err)
+	}
+
+	soa := srv.buildSOA(zone)
+	if soa.Ns != "ns.example.com." {
+		t.Fatalf("got ns %q, want %q", soa.Ns, "ns.example.com.")
+	}
+	if soa.Hdr.Name != "test.example.com." {
+		t.Fatalf("got name %q, want %q", soa.Hdr.Name, "test.example.com.")
+	}
+}
+
+func TestRecordToRR_A(t *testing.T) {
+	srv, _ := setupTestServer(t)
+
+	rec := db.Record{Name: "metacrypt", Type: "A", Value: "192.168.88.181", TTL: 300}
+	rr := srv.recordToRR("metacrypt.test.example.com.", rec)
+	if rr == nil {
+		t.Fatal("expected non-nil RR")
+	}
+
+	a, ok := rr.(*dns.A)
+	if !ok {
+		t.Fatalf("expected *dns.A, got %T", rr)
+	}
+	if a.A.String() != "192.168.88.181" {
+		t.Fatalf("got IP %q, want %q", a.A.String(), "192.168.88.181")
+	}
+}
+
+func TestRecordToRR_AAAA(t *testing.T) {
+	srv, _ := setupTestServer(t)
+
+	rec := db.Record{Name: "mcr", Type: "AAAA", Value: "2001:db8::1", TTL: 300}
+	rr := srv.recordToRR("mcr.test.example.com.", rec)
+	if rr == nil {
+		t.Fatal("expected non-nil RR")
+	}
+
+	aaaa, ok := rr.(*dns.AAAA)
+	if !ok {
+		t.Fatalf("expected *dns.AAAA, got %T", rr)
+	}
+	if aaaa.AAAA.String() != "2001:db8::1" {
+		t.Fatalf("got IP %q, want %q", aaaa.AAAA.String(), "2001:db8::1")
+	}
+}
+
+func TestRecordToRR_CNAME(t *testing.T) {
+	srv, _ := setupTestServer(t)
+
+	rec := db.Record{Name: "alias", Type: "CNAME", Value: "metacrypt.test.example.com.", TTL: 300}
+	rr := srv.recordToRR("alias.test.example.com.", rec)
+	if rr == nil {
+		t.Fatal("expected non-nil RR")
+	}
+
+	cname, ok := rr.(*dns.CNAME)
+	if !ok {
+		t.Fatalf("expected *dns.CNAME, got %T", rr)
+	}
+	if cname.Target != "metacrypt.test.example.com." {
+		t.Fatalf("got target %q, want %q", cname.Target, "metacrypt.test.example.com.")
+	}
+}

internal/grpcserver/admin.go

@@ -0,0 +1,20 @@
+package grpcserver
+
+import (
+	"context"
+
+	pb "git.wntrmute.dev/kyle/mcns/gen/mcns/v1"
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+type adminService struct {
+	pb.UnimplementedAdminServiceServer
+	db *db.DB
+}
+
+func (s *adminService) Health(_ context.Context, _ *pb.HealthRequest) (*pb.HealthResponse, error) {
+	if err := s.db.Ping(); err != nil {
+		return &pb.HealthResponse{Status: "unhealthy"}, nil
+	}
+	return &pb.HealthResponse{Status: "ok"}, nil
+}

internal/grpcserver/auth_handler.go

@@ -0,0 +1,38 @@
+package grpcserver
+
+import (
+	"context"
+	"errors"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	pb "git.wntrmute.dev/kyle/mcns/gen/mcns/v1"
+)
+
+type authService struct {
+	pb.UnimplementedAuthServiceServer
+	auth *mcdslauth.Authenticator
+}
+
+func (s *authService) Login(_ context.Context, req *pb.LoginRequest) (*pb.LoginResponse, error) {
+	token, _, err := s.auth.Login(req.Username, req.Password, req.TotpCode)
+	if err != nil {
+		if errors.Is(err, mcdslauth.ErrInvalidCredentials) {
+			return nil, status.Error(codes.Unauthenticated, "invalid credentials")
+		}
+		if errors.Is(err, mcdslauth.ErrForbidden) {
+			return nil, status.Error(codes.PermissionDenied, "access denied by login policy")
+		}
+		return nil, status.Error(codes.Unavailable, "authentication service unavailable")
+	}
+	return &pb.LoginResponse{Token: token}, nil
+}
+
+func (s *authService) Logout(_ context.Context, req *pb.LogoutRequest) (*pb.LogoutResponse, error) {
+	if err := s.auth.Logout(req.Token); err != nil {
+		return nil, status.Error(codes.Internal, "logout failed")
+	}
+	return &pb.LogoutResponse{}, nil
+}

internal/grpcserver/interceptors.go

@@ -0,0 +1,45 @@
+package grpcserver
+
+import (
+	mcdslgrpc "git.wntrmute.dev/kyle/mcdsl/grpcserver"
+)
+
+// methodMap builds the mcdsl grpcserver.MethodMap for MCNS.
+//
+// Adding a new RPC without adding it to the correct map is a security
+// defect — the mcdsl auth interceptor denies unmapped methods by default.
+func methodMap() mcdslgrpc.MethodMap {
+	return mcdslgrpc.MethodMap{
+		Public:        publicMethods(),
+		AuthRequired:  authRequiredMethods(),
+		AdminRequired: adminRequiredMethods(),
+	}
+}
+
+func publicMethods() map[string]bool {
+	return map[string]bool{
+		"/mcns.v1.AdminService/Health": true,
+		"/mcns.v1.AuthService/Login":   true,
+	}
+}
+
+func authRequiredMethods() map[string]bool {
+	return map[string]bool{
+		"/mcns.v1.AuthService/Logout":      true,
+		"/mcns.v1.ZoneService/ListZones":   true,
+		"/mcns.v1.ZoneService/GetZone":     true,
+		"/mcns.v1.RecordService/ListRecords": true,
+		"/mcns.v1.RecordService/GetRecord":   true,
+	}
+}
+
+func adminRequiredMethods() map[string]bool {
+	return map[string]bool{
+		"/mcns.v1.ZoneService/CreateZone": true,
+		"/mcns.v1.ZoneService/UpdateZone": true,
+		"/mcns.v1.ZoneService/DeleteZone": true,
+		"/mcns.v1.RecordService/CreateRecord": true,
+		"/mcns.v1.RecordService/UpdateRecord": true,
+		"/mcns.v1.RecordService/DeleteRecord": true,
+	}
+}

internal/grpcserver/records.go

@@ -0,0 +1,110 @@
+package grpcserver
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	pb "git.wntrmute.dev/kyle/mcns/gen/mcns/v1"
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+type recordService struct {
+	pb.UnimplementedRecordServiceServer
+	db *db.DB
+}
+
+func (s *recordService) ListRecords(_ context.Context, req *pb.ListRecordsRequest) (*pb.ListRecordsResponse, error) {
+	records, err := s.db.ListRecords(req.Zone, req.Name, req.Type)
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "zone not found")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to list records")
+	}
+
+	resp := &pb.ListRecordsResponse{}
+	for _, r := range records {
+		resp.Records = append(resp.Records, recordToProto(r))
+	}
+	return resp, nil
+}
+
+func (s *recordService) GetRecord(_ context.Context, req *pb.GetRecordRequest) (*pb.Record, error) {
+	record, err := s.db.GetRecord(req.Id)
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "record not found")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to get record")
+	}
+	return recordToProto(*record), nil
+}
+
+func (s *recordService) CreateRecord(_ context.Context, req *pb.CreateRecordRequest) (*pb.Record, error) {
+	record, err := s.db.CreateRecord(req.Zone, req.Name, req.Type, req.Value, int(req.Ttl))
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "zone not found")
+	}
+	if errors.Is(err, db.ErrConflict) {
+		return nil, status.Error(codes.AlreadyExists, err.Error())
+	}
+	if err != nil {
+		return nil, status.Error(codes.InvalidArgument, err.Error())
+	}
+	return recordToProto(*record), nil
+}
+
+func (s *recordService) UpdateRecord(_ context.Context, req *pb.UpdateRecordRequest) (*pb.Record, error) {
+	record, err := s.db.UpdateRecord(req.Id, req.Name, req.Type, req.Value, int(req.Ttl))
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "record not found")
+	}
+	if errors.Is(err, db.ErrConflict) {
+		return nil, status.Error(codes.AlreadyExists, err.Error())
+	}
+	if err != nil {
+		return nil, status.Error(codes.InvalidArgument, err.Error())
+	}
+	return recordToProto(*record), nil
+}
+
+func (s *recordService) DeleteRecord(_ context.Context, req *pb.DeleteRecordRequest) (*pb.DeleteRecordResponse, error) {
+	err := s.db.DeleteRecord(req.Id)
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "record not found")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to delete record")
+	}
+	return &pb.DeleteRecordResponse{}, nil
+}
+
+func recordToProto(r db.Record) *pb.Record {
+	return &pb.Record{
+		Id:        r.ID,
+		Zone:      r.ZoneName,
+		Name:      r.Name,
+		Type:      r.Type,
+		Value:     r.Value,
+		Ttl:       int32(r.TTL),
+		CreatedAt: parseRecordTimestamp(r.CreatedAt),
+		UpdatedAt: parseRecordTimestamp(r.UpdatedAt),
+	}
+}
+
+func parseRecordTimestamp(s string) *timestamppb.Timestamp {
+	t, err := parseTime(s)
+	if err != nil {
+		return nil
+	}
+	return timestamppb.New(t)
+}
+
+func parseTime(s string) (time.Time, error) {
+	return time.Parse("2006-01-02T15:04:05Z", s)
+}

internal/grpcserver/server.go

@@ -0,0 +1,50 @@
+package grpcserver
+
+import (
+	"log/slog"
+	"net"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+	mcdslgrpc "git.wntrmute.dev/kyle/mcdsl/grpcserver"
+
+	pb "git.wntrmute.dev/kyle/mcns/gen/mcns/v1"
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+// Deps holds the dependencies injected into the gRPC server.
+type Deps struct {
+	DB            *db.DB
+	Authenticator *mcdslauth.Authenticator
+}
+
+// Server wraps a mcdsl grpcserver.Server with MCNS-specific services.
+type Server struct {
+	srv *mcdslgrpc.Server
+}
+
+// New creates a configured gRPC server with MCNS services registered.
+func New(certFile, keyFile string, deps Deps, logger *slog.Logger) (*Server, error) {
+	srv, err := mcdslgrpc.New(certFile, keyFile, deps.Authenticator, methodMap(), logger)
+	if err != nil {
+		return nil, err
+	}
+
+	s := &Server{srv: srv}
+
+	pb.RegisterAdminServiceServer(srv.GRPCServer, &adminService{db: deps.DB})
+	pb.RegisterAuthServiceServer(srv.GRPCServer, &authService{auth: deps.Authenticator})
+	pb.RegisterZoneServiceServer(srv.GRPCServer, &zoneService{db: deps.DB})
+	pb.RegisterRecordServiceServer(srv.GRPCServer, &recordService{db: deps.DB})
+
+	return s, nil
+}
+
+// Serve starts the gRPC server on the given listener.
+func (s *Server) Serve(lis net.Listener) error {
+	return s.srv.GRPCServer.Serve(lis)
+}
+
+// GracefulStop gracefully stops the gRPC server.
+func (s *Server) GracefulStop() {
+	s.srv.Stop()
+}

internal/grpcserver/zones.go

@@ -0,0 +1,134 @@
+package grpcserver
+
+import (
+	"context"
+	"errors"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	pb "git.wntrmute.dev/kyle/mcns/gen/mcns/v1"
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+type zoneService struct {
+	pb.UnimplementedZoneServiceServer
+	db *db.DB
+}
+
+func (s *zoneService) ListZones(_ context.Context, _ *pb.ListZonesRequest) (*pb.ListZonesResponse, error) {
+	zones, err := s.db.ListZones()
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to list zones")
+	}
+
+	resp := &pb.ListZonesResponse{}
+	for _, z := range zones {
+		resp.Zones = append(resp.Zones, zoneToProto(z))
+	}
+	return resp, nil
+}
+
+func (s *zoneService) GetZone(_ context.Context, req *pb.GetZoneRequest) (*pb.Zone, error) {
+	zone, err := s.db.GetZone(req.Name)
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "zone not found")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to get zone")
+	}
+	return zoneToProto(*zone), nil
+}
+
+func (s *zoneService) CreateZone(_ context.Context, req *pb.CreateZoneRequest) (*pb.Zone, error) {
+	refresh := int(req.Refresh)
+	if refresh == 0 {
+		refresh = 3600
+	}
+	retry := int(req.Retry)
+	if retry == 0 {
+		retry = 600
+	}
+	expire := int(req.Expire)
+	if expire == 0 {
+		expire = 86400
+	}
+	minTTL := int(req.MinimumTtl)
+	if minTTL == 0 {
+		minTTL = 300
+	}
+
+	zone, err := s.db.CreateZone(req.Name, req.PrimaryNs, req.AdminEmail, refresh, retry, expire, minTTL)
+	if errors.Is(err, db.ErrConflict) {
+		return nil, status.Error(codes.AlreadyExists, err.Error())
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to create zone")
+	}
+	return zoneToProto(*zone), nil
+}
+
+func (s *zoneService) UpdateZone(_ context.Context, req *pb.UpdateZoneRequest) (*pb.Zone, error) {
+	refresh := int(req.Refresh)
+	if refresh == 0 {
+		refresh = 3600
+	}
+	retry := int(req.Retry)
+	if retry == 0 {
+		retry = 600
+	}
+	expire := int(req.Expire)
+	if expire == 0 {
+		expire = 86400
+	}
+	minTTL := int(req.MinimumTtl)
+	if minTTL == 0 {
+		minTTL = 300
+	}
+
+	zone, err := s.db.UpdateZone(req.Name, req.PrimaryNs, req.AdminEmail, refresh, retry, expire, minTTL)
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "zone not found")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to update zone")
+	}
+	return zoneToProto(*zone), nil
+}
+
+func (s *zoneService) DeleteZone(_ context.Context, req *pb.DeleteZoneRequest) (*pb.DeleteZoneResponse, error) {
+	err := s.db.DeleteZone(req.Name)
+	if errors.Is(err, db.ErrNotFound) {
+		return nil, status.Error(codes.NotFound, "zone not found")
+	}
+	if err != nil {
+		return nil, status.Error(codes.Internal, "failed to delete zone")
+	}
+	return &pb.DeleteZoneResponse{}, nil
+}
+
+func zoneToProto(z db.Zone) *pb.Zone {
+	return &pb.Zone{
+		Id:         z.ID,
+		Name:       z.Name,
+		PrimaryNs:  z.PrimaryNS,
+		AdminEmail: z.AdminEmail,
+		Refresh:    int32(z.Refresh),
+		Retry:      int32(z.Retry),
+		Expire:     int32(z.Expire),
+		MinimumTtl: int32(z.MinimumTTL),
+		Serial:     z.Serial,
+		CreatedAt:  parseTimestamp(z.CreatedAt),
+		UpdatedAt:  parseTimestamp(z.UpdatedAt),
+	}
+}
+
+func parseTimestamp(s string) *timestamppb.Timestamp {
+	// SQLite stores as "2006-01-02T15:04:05Z".
+	t, err := parseTime(s)
+	if err != nil {
+		return nil
+	}
+	return timestamppb.New(t)
+}

internal/server/auth.go

@@ -0,0 +1,62 @@
+package server
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+)
+
+type loginRequest struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+	TOTPCode string `json:"totp_code"`
+}
+
+type loginResponse struct {
+	Token string `json:"token"`
+}
+
+func loginHandler(auth *mcdslauth.Authenticator) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req loginRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			writeError(w, http.StatusBadRequest, "invalid request body")
+			return
+		}
+
+		token, _, err := auth.Login(req.Username, req.Password, req.TOTPCode)
+		if err != nil {
+			if errors.Is(err, mcdslauth.ErrInvalidCredentials) {
+				writeError(w, http.StatusUnauthorized, "invalid credentials")
+				return
+			}
+			if errors.Is(err, mcdslauth.ErrForbidden) {
+				writeError(w, http.StatusForbidden, "access denied by login policy")
+				return
+			}
+			writeError(w, http.StatusServiceUnavailable, "authentication service unavailable")
+			return
+		}
+
+		writeJSON(w, http.StatusOK, loginResponse{Token: token})
+	}
+}
+
+func logoutHandler(auth *mcdslauth.Authenticator) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		token := extractBearerToken(r)
+		if token == "" {
+			writeError(w, http.StatusUnauthorized, "authentication required")
+			return
+		}
+
+		if err := auth.Logout(token); err != nil {
+			writeError(w, http.StatusInternalServerError, "logout failed")
+			return
+		}
+
+		w.WriteHeader(http.StatusNoContent)
+	}
+}

internal/server/handlers_test.go

@@ -0,0 +1,949 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/go-chi/chi/v5"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+// openTestDB creates a temporary SQLite database with all migrations applied.
+func openTestDB(t *testing.T) *db.DB {
+	t.Helper()
+	dir := t.TempDir()
+	database, err := db.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := database.Migrate(); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	return database
+}
+
+// createTestZone inserts a zone for use by record tests.
+func createTestZone(t *testing.T, database *db.DB) *db.Zone {
+	t.Helper()
+	zone, err := database.CreateZone("test.example.com", "ns.example.com.", "admin.example.com.", 3600, 600, 86400, 300)
+	if err != nil {
+		t.Fatalf("create zone: %v", err)
+	}
+	return zone
+}
+
+// newChiRequest builds a request with chi URL params injected into the context.
+func newChiRequest(method, target string, body string, params map[string]string) *http.Request {
+	var r *http.Request
+	if body != "" {
+		r = httptest.NewRequest(method, target, strings.NewReader(body))
+	} else {
+		r = httptest.NewRequest(method, target, nil)
+	}
+	r.Header.Set("Content-Type", "application/json")
+
+	if len(params) > 0 {
+		rctx := chi.NewRouteContext()
+		for k, v := range params {
+			rctx.URLParams.Add(k, v)
+		}
+		r = r.WithContext(context.WithValue(r.Context(), chi.RouteCtxKey, rctx))
+	}
+	return r
+}
+
+// decodeJSON decodes the response body into v.
+func decodeJSON(t *testing.T, rec *httptest.ResponseRecorder, v any) {
+	t.Helper()
+	if err := json.NewDecoder(rec.Body).Decode(v); err != nil {
+		t.Fatalf("decode json: %v", err)
+	}
+}
+
+// ---- Zone handler tests ----
+
+func TestListZonesHandler_SeedOnly(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := listZonesHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones", "", nil)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var resp map[string][]db.Zone
+	decodeJSON(t, rec, &resp)
+	zones := resp["zones"]
+	if len(zones) != 2 {
+		t.Fatalf("got %d zones, want 2 (seed zones)", len(zones))
+	}
+}
+
+func TestListZonesHandler_Populated(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	handler := listZonesHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones", "", nil)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var resp map[string][]db.Zone
+	decodeJSON(t, rec, &resp)
+	zones := resp["zones"]
+	// 2 seed + 1 created = 3.
+	if len(zones) != 3 {
+		t.Fatalf("got %d zones, want 3", len(zones))
+	}
+}
+
+func TestGetZoneHandler_Found(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	handler := getZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com", "", map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var zone db.Zone
+	decodeJSON(t, rec, &zone)
+	if zone.Name != "test.example.com" {
+		t.Fatalf("zone name = %q, want %q", zone.Name, "test.example.com")
+	}
+}
+
+func TestGetZoneHandler_NotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := getZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/nonexistent.com", "", map[string]string{"zone": "nonexistent.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestCreateZoneHandler_Success(t *testing.T) {
+	database := openTestDB(t)
+
+	body := `{"name":"new.example.com","primary_ns":"ns1.example.com.","admin_email":"admin.example.com."}`
+	handler := createZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones", body, nil)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusCreated {
+		t.Fatalf("status = %d, want %d; body: %s", rec.Code, http.StatusCreated, rec.Body.String())
+	}
+
+	var zone db.Zone
+	decodeJSON(t, rec, &zone)
+	if zone.Name != "new.example.com" {
+		t.Fatalf("zone name = %q, want %q", zone.Name, "new.example.com")
+	}
+	if zone.PrimaryNS != "ns1.example.com." {
+		t.Fatalf("primary_ns = %q, want %q", zone.PrimaryNS, "ns1.example.com.")
+	}
+	// SOA defaults should be applied.
+	if zone.Refresh != 3600 {
+		t.Fatalf("refresh = %d, want 3600", zone.Refresh)
+	}
+}
+
+func TestCreateZoneHandler_MissingFields(t *testing.T) {
+	tests := []struct {
+		name string
+		body string
+	}{
+		{"missing name", `{"primary_ns":"ns1.example.com.","admin_email":"admin.example.com."}`},
+		{"missing primary_ns", `{"name":"new.example.com","admin_email":"admin.example.com."}`},
+		{"missing admin_email", `{"name":"new.example.com","primary_ns":"ns1.example.com."}`},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			database := openTestDB(t)
+			handler := createZoneHandler(database)
+			rec := httptest.NewRecorder()
+			req := newChiRequest(http.MethodPost, "/v1/zones", tt.body, nil)
+
+			handler.ServeHTTP(rec, req)
+
+			if rec.Code != http.StatusBadRequest {
+				t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+			}
+		})
+	}
+}
+
+func TestCreateZoneHandler_Duplicate(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	body := `{"name":"test.example.com","primary_ns":"ns1.example.com.","admin_email":"admin.example.com."}`
+	handler := createZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones", body, nil)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusConflict {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusConflict)
+	}
+}
+
+func TestCreateZoneHandler_InvalidJSON(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := createZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones", "not json", nil)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestUpdateZoneHandler_Success(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	body := `{"primary_ns":"ns2.example.com.","admin_email":"newadmin.example.com.","refresh":7200}`
+	handler := updateZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/test.example.com", body, map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d; body: %s", rec.Code, http.StatusOK, rec.Body.String())
+	}
+
+	var zone db.Zone
+	decodeJSON(t, rec, &zone)
+	if zone.PrimaryNS != "ns2.example.com." {
+		t.Fatalf("primary_ns = %q, want %q", zone.PrimaryNS, "ns2.example.com.")
+	}
+	if zone.Refresh != 7200 {
+		t.Fatalf("refresh = %d, want 7200", zone.Refresh)
+	}
+}
+
+func TestUpdateZoneHandler_NotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	body := `{"primary_ns":"ns2.example.com.","admin_email":"admin.example.com."}`
+	handler := updateZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/nonexistent.com", body, map[string]string{"zone": "nonexistent.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestUpdateZoneHandler_MissingFields(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	body := `{"admin_email":"admin.example.com."}`
+	handler := updateZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/test.example.com", body, map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestDeleteZoneHandler_Success(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	handler := deleteZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodDelete, "/v1/zones/test.example.com", "", map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNoContent {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNoContent)
+	}
+
+	// Verify the zone is gone.
+	_, err := database.GetZone("test.example.com")
+	if err != db.ErrNotFound {
+		t.Fatalf("expected ErrNotFound after delete, got %v", err)
+	}
+}
+
+func TestDeleteZoneHandler_NotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := deleteZoneHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodDelete, "/v1/zones/nonexistent.com", "", map[string]string{"zone": "nonexistent.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+// ---- Record handler tests ----
+
+func TestListRecordsHandler_WithZone(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	_, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "mail", "A", "10.0.0.2", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	handler := listRecordsHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com/records", "", map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var resp map[string][]db.Record
+	decodeJSON(t, rec, &resp)
+	records := resp["records"]
+	if len(records) != 2 {
+		t.Fatalf("got %d records, want 2", len(records))
+	}
+}
+
+func TestListRecordsHandler_ZoneNotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := listRecordsHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/nonexistent.com/records", "", map[string]string{"zone": "nonexistent.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestListRecordsHandler_EmptyZone(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	handler := listRecordsHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com/records", "", map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var resp map[string][]db.Record
+	decodeJSON(t, rec, &resp)
+	records := resp["records"]
+	if len(records) != 0 {
+		t.Fatalf("got %d records, want 0", len(records))
+	}
+}
+
+func TestListRecordsHandler_WithFilters(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	_, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "www", "A", "10.0.0.2", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+	_, err = database.CreateRecord("test.example.com", "mail", "A", "10.0.0.3", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	handler := listRecordsHandler(database)
+
+	// Filter by name.
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com/records?name=www", "", map[string]string{"zone": "test.example.com"})
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var resp map[string][]db.Record
+	decodeJSON(t, rec, &resp)
+	if len(resp["records"]) != 2 {
+		t.Fatalf("got %d records for name=www, want 2", len(resp["records"]))
+	}
+}
+
+func TestGetRecordHandler_Found(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	created, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	handler := getRecordHandler(database)
+	rec := httptest.NewRecorder()
+	idStr := fmt.Sprintf("%d", created.ID)
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com/records/"+idStr, "", map[string]string{
+		"zone": "test.example.com",
+		"id":   idStr,
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+
+	var record db.Record
+	decodeJSON(t, rec, &record)
+	if record.Name != "www" {
+		t.Fatalf("record name = %q, want %q", record.Name, "www")
+	}
+	if record.Value != "10.0.0.1" {
+		t.Fatalf("record value = %q, want %q", record.Value, "10.0.0.1")
+	}
+}
+
+func TestGetRecordHandler_NotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := getRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com/records/99999", "", map[string]string{
+		"zone": "test.example.com",
+		"id":   "99999",
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestGetRecordHandler_InvalidID(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := getRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodGet, "/v1/zones/test.example.com/records/abc", "", map[string]string{
+		"zone": "test.example.com",
+		"id":   "abc",
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestCreateRecordHandler_Success(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	body := `{"name":"www","type":"A","value":"10.0.0.1","ttl":600}`
+	handler := createRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones/test.example.com/records", body, map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusCreated {
+		t.Fatalf("status = %d, want %d; body: %s", rec.Code, http.StatusCreated, rec.Body.String())
+	}
+
+	var record db.Record
+	decodeJSON(t, rec, &record)
+	if record.Name != "www" {
+		t.Fatalf("record name = %q, want %q", record.Name, "www")
+	}
+	if record.Type != "A" {
+		t.Fatalf("record type = %q, want %q", record.Type, "A")
+	}
+	if record.TTL != 600 {
+		t.Fatalf("ttl = %d, want 600", record.TTL)
+	}
+}
+
+func TestCreateRecordHandler_MissingFields(t *testing.T) {
+	tests := []struct {
+		name string
+		body string
+	}{
+		{"missing name", `{"type":"A","value":"10.0.0.1"}`},
+		{"missing type", `{"name":"www","value":"10.0.0.1"}`},
+		{"missing value", `{"name":"www","type":"A"}`},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			database := openTestDB(t)
+			createTestZone(t, database)
+			handler := createRecordHandler(database)
+			rec := httptest.NewRecorder()
+			req := newChiRequest(http.MethodPost, "/v1/zones/test.example.com/records", tt.body, map[string]string{"zone": "test.example.com"})
+
+			handler.ServeHTTP(rec, req)
+
+			if rec.Code != http.StatusBadRequest {
+				t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+			}
+		})
+	}
+}
+
+func TestCreateRecordHandler_InvalidIP(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	body := `{"name":"www","type":"A","value":"not-an-ip"}`
+	handler := createRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones/test.example.com/records", body, map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestCreateRecordHandler_CNAMEConflict(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	// Create an A record first.
+	_, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create A record: %v", err)
+	}
+
+	// Try to create a CNAME for the same name via handler.
+	body := `{"name":"www","type":"CNAME","value":"other.example.com."}`
+	handler := createRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones/test.example.com/records", body, map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusConflict {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusConflict)
+	}
+}
+
+func TestCreateRecordHandler_ZoneNotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	body := `{"name":"www","type":"A","value":"10.0.0.1"}`
+	handler := createRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones/nonexistent.com/records", body, map[string]string{"zone": "nonexistent.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestCreateRecordHandler_InvalidJSON(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	handler := createRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPost, "/v1/zones/test.example.com/records", "not json", map[string]string{"zone": "test.example.com"})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestUpdateRecordHandler_Success(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	created, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	idStr := fmt.Sprintf("%d", created.ID)
+	body := `{"name":"www","type":"A","value":"10.0.0.2","ttl":600}`
+	handler := updateRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/test.example.com/records/"+idStr, body, map[string]string{
+		"zone": "test.example.com",
+		"id":   idStr,
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d; body: %s", rec.Code, http.StatusOK, rec.Body.String())
+	}
+
+	var record db.Record
+	decodeJSON(t, rec, &record)
+	if record.Value != "10.0.0.2" {
+		t.Fatalf("value = %q, want %q", record.Value, "10.0.0.2")
+	}
+	if record.TTL != 600 {
+		t.Fatalf("ttl = %d, want 600", record.TTL)
+	}
+}
+
+func TestUpdateRecordHandler_NotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	body := `{"name":"www","type":"A","value":"10.0.0.1"}`
+	handler := updateRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/test.example.com/records/99999", body, map[string]string{
+		"zone": "test.example.com",
+		"id":   "99999",
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestUpdateRecordHandler_InvalidID(t *testing.T) {
+	database := openTestDB(t)
+
+	body := `{"name":"www","type":"A","value":"10.0.0.1"}`
+	handler := updateRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/test.example.com/records/abc", body, map[string]string{
+		"zone": "test.example.com",
+		"id":   "abc",
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestUpdateRecordHandler_MissingFields(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	created, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	idStr := fmt.Sprintf("%d", created.ID)
+
+	// Missing name.
+	body := `{"type":"A","value":"10.0.0.1"}`
+	handler := updateRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodPut, "/v1/zones/test.example.com/records/"+idStr, body, map[string]string{
+		"zone": "test.example.com",
+		"id":   idStr,
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+func TestDeleteRecordHandler_Success(t *testing.T) {
+	database := openTestDB(t)
+	createTestZone(t, database)
+
+	created, err := database.CreateRecord("test.example.com", "www", "A", "10.0.0.1", 300)
+	if err != nil {
+		t.Fatalf("create record: %v", err)
+	}
+
+	idStr := fmt.Sprintf("%d", created.ID)
+	handler := deleteRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodDelete, "/v1/zones/test.example.com/records/"+idStr, "", map[string]string{
+		"zone": "test.example.com",
+		"id":   idStr,
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNoContent {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNoContent)
+	}
+
+	// Verify record is gone.
+	_, err = database.GetRecord(created.ID)
+	if err != db.ErrNotFound {
+		t.Fatalf("expected ErrNotFound after delete, got %v", err)
+	}
+}
+
+func TestDeleteRecordHandler_NotFound(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := deleteRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodDelete, "/v1/zones/test.example.com/records/99999", "", map[string]string{
+		"zone": "test.example.com",
+		"id":   "99999",
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestDeleteRecordHandler_InvalidID(t *testing.T) {
+	database := openTestDB(t)
+
+	handler := deleteRecordHandler(database)
+	rec := httptest.NewRecorder()
+	req := newChiRequest(http.MethodDelete, "/v1/zones/test.example.com/records/abc", "", map[string]string{
+		"zone": "test.example.com",
+		"id":   "abc",
+	})
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+}
+
+// ---- Middleware tests ----
+
+func TestRequireAdmin_WithAdminContext(t *testing.T) {
+	called := false
+	inner := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		called = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	handler := requireAdmin(inner)
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/test", nil)
+
+	// Inject admin TokenInfo into context.
+	info := &mcdslauth.TokenInfo{
+		Username: "admin-user",
+		IsAdmin:  true,
+		Roles:    []string{"admin"},
+	}
+	ctx := context.WithValue(req.Context(), tokenInfoKey, info)
+	req = req.WithContext(ctx)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+	if !called {
+		t.Fatal("inner handler was not called")
+	}
+}
+
+func TestRequireAdmin_WithNonAdminContext(t *testing.T) {
+	called := false
+	inner := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		called = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	handler := requireAdmin(inner)
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/test", nil)
+
+	// Inject non-admin TokenInfo into context.
+	info := &mcdslauth.TokenInfo{
+		Username: "regular-user",
+		IsAdmin:  false,
+		Roles:    []string{"viewer"},
+	}
+	ctx := context.WithValue(req.Context(), tokenInfoKey, info)
+	req = req.WithContext(ctx)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusForbidden {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusForbidden)
+	}
+	if called {
+		t.Fatal("inner handler should not have been called")
+	}
+}
+
+func TestRequireAdmin_NoTokenInfo(t *testing.T) {
+	called := false
+	inner := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		called = true
+		w.WriteHeader(http.StatusOK)
+	})
+
+	handler := requireAdmin(inner)
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/test", nil)
+
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusForbidden {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusForbidden)
+	}
+	if called {
+		t.Fatal("inner handler should not have been called")
+	}
+}
+
+func TestExtractBearerToken(t *testing.T) {
+	tests := []struct {
+		name   string
+		header string
+		want   string
+	}{
+		{"valid bearer", "Bearer abc123", "abc123"},
+		{"empty header", "", ""},
+		{"no prefix", "abc123", ""},
+		{"basic auth", "Basic abc123", ""},
+		{"bearer with spaces", "Bearer  token-with-space ", "token-with-space"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := httptest.NewRequest(http.MethodGet, "/", nil)
+			if tt.header != "" {
+				r.Header.Set("Authorization", tt.header)
+			}
+			got := extractBearerToken(r)
+			if got != tt.want {
+				t.Fatalf("extractBearerToken(%q) = %q, want %q", tt.header, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestTokenInfoFromContext(t *testing.T) {
+	// No token info in context.
+	ctx := context.Background()
+	if info := tokenInfoFromContext(ctx); info != nil {
+		t.Fatal("expected nil, got token info")
+	}
+
+	// With token info.
+	expected := &mcdslauth.TokenInfo{Username: "testuser", IsAdmin: true}
+	ctx = context.WithValue(ctx, tokenInfoKey, expected)
+	got := tokenInfoFromContext(ctx)
+	if got == nil {
+		t.Fatal("expected token info, got nil")
+	}
+	if got.Username != expected.Username {
+		t.Fatalf("username = %q, want %q", got.Username, expected.Username)
+	}
+	if !got.IsAdmin {
+		t.Fatal("expected IsAdmin to be true")
+	}
+}
+
+// ---- writeJSON / writeError tests ----
+
+func TestWriteJSON(t *testing.T) {
+	rec := httptest.NewRecorder()
+	writeJSON(rec, http.StatusOK, map[string]string{"key": "value"})
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusOK)
+	}
+	if ct := rec.Header().Get("Content-Type"); ct != "application/json" {
+		t.Fatalf("content-type = %q, want %q", ct, "application/json")
+	}
+
+	var resp map[string]string
+	decodeJSON(t, rec, &resp)
+	if resp["key"] != "value" {
+		t.Fatalf("got key=%q, want %q", resp["key"], "value")
+	}
+}
+
+func TestWriteError(t *testing.T) {
+	rec := httptest.NewRecorder()
+	writeError(rec, http.StatusBadRequest, "bad input")
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want %d", rec.Code, http.StatusBadRequest)
+	}
+
+	var resp map[string]string
+	decodeJSON(t, rec, &resp)
+	if resp["error"] != "bad input" {
+		t.Fatalf("got error=%q, want %q", resp["error"], "bad input")
+	}
+}

internal/server/middleware.go

@@ -0,0 +1,96 @@
+package server
+
+import (
+	"context"
+	"log/slog"
+	"net/http"
+	"strings"
+	"time"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+)
+
+type contextKey string
+
+const tokenInfoKey contextKey = "tokenInfo"
+
+// requireAuth returns middleware that validates Bearer tokens via MCIAS.
+func requireAuth(auth *mcdslauth.Authenticator) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			token := extractBearerToken(r)
+			if token == "" {
+				writeError(w, http.StatusUnauthorized, "authentication required")
+				return
+			}
+
+			info, err := auth.ValidateToken(token)
+			if err != nil {
+				writeError(w, http.StatusUnauthorized, "invalid or expired token")
+				return
+			}
+
+			ctx := context.WithValue(r.Context(), tokenInfoKey, info)
+			next.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+}
+
+// requireAdmin is middleware that checks the caller has the admin role.
+func requireAdmin(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		info := tokenInfoFromContext(r.Context())
+		if info == nil || !info.IsAdmin {
+			writeError(w, http.StatusForbidden, "admin role required")
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+// tokenInfoFromContext extracts the TokenInfo from the request context.
+func tokenInfoFromContext(ctx context.Context) *mcdslauth.TokenInfo {
+	info, _ := ctx.Value(tokenInfoKey).(*mcdslauth.TokenInfo)
+	return info
+}
+
+// extractBearerToken extracts a bearer token from the Authorization header.
+func extractBearerToken(r *http.Request) string {
+	h := r.Header.Get("Authorization")
+	if h == "" {
+		return ""
+	}
+	const prefix = "Bearer "
+	if !strings.HasPrefix(h, prefix) {
+		return ""
+	}
+	return strings.TrimSpace(h[len(prefix):])
+}
+
+// loggingMiddleware logs HTTP requests.
+func loggingMiddleware(logger *slog.Logger) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			start := time.Now()
+			sw := &statusWriter{ResponseWriter: w, status: http.StatusOK}
+			next.ServeHTTP(sw, r)
+			logger.Info("http",
+				"method", r.Method,
+				"path", r.URL.Path,
+				"status", sw.status,
+				"duration", time.Since(start),
+				"remote", r.RemoteAddr,
+			)
+		})
+	}
+}
+
+type statusWriter struct {
+	http.ResponseWriter
+	status int
+}
+
+func (w *statusWriter) WriteHeader(code int) {
+	w.status = code
+	w.ResponseWriter.WriteHeader(code)
+}

internal/server/records.go

@@ -0,0 +1,174 @@
+package server
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"strconv"
+
+	"github.com/go-chi/chi/v5"
+
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+type createRecordRequest struct {
+	Name  string `json:"name"`
+	Type  string `json:"type"`
+	Value string `json:"value"`
+	TTL   int    `json:"ttl"`
+}
+
+func listRecordsHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		zoneName := chi.URLParam(r, "zone")
+		nameFilter := r.URL.Query().Get("name")
+		typeFilter := r.URL.Query().Get("type")
+
+		records, err := database.ListRecords(zoneName, nameFilter, typeFilter)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "zone not found")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to list records")
+			return
+		}
+		if records == nil {
+			records = []db.Record{}
+		}
+		writeJSON(w, http.StatusOK, map[string]any{"records": records})
+	}
+}
+
+func getRecordHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		idStr := chi.URLParam(r, "id")
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err != nil {
+			writeError(w, http.StatusBadRequest, "invalid record ID")
+			return
+		}
+
+		record, err := database.GetRecord(id)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "record not found")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to get record")
+			return
+		}
+
+		writeJSON(w, http.StatusOK, record)
+	}
+}
+
+func createRecordHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		zoneName := chi.URLParam(r, "zone")
+
+		var req createRecordRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			writeError(w, http.StatusBadRequest, "invalid request body")
+			return
+		}
+
+		if req.Name == "" {
+			writeError(w, http.StatusBadRequest, "name is required")
+			return
+		}
+		if req.Type == "" {
+			writeError(w, http.StatusBadRequest, "type is required")
+			return
+		}
+		if req.Value == "" {
+			writeError(w, http.StatusBadRequest, "value is required")
+			return
+		}
+
+		record, err := database.CreateRecord(zoneName, req.Name, req.Type, req.Value, req.TTL)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "zone not found")
+			return
+		}
+		if errors.Is(err, db.ErrConflict) {
+			writeError(w, http.StatusConflict, err.Error())
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
+		writeJSON(w, http.StatusCreated, record)
+	}
+}
+
+func updateRecordHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		idStr := chi.URLParam(r, "id")
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err != nil {
+			writeError(w, http.StatusBadRequest, "invalid record ID")
+			return
+		}
+
+		var req createRecordRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			writeError(w, http.StatusBadRequest, "invalid request body")
+			return
+		}
+
+		if req.Name == "" {
+			writeError(w, http.StatusBadRequest, "name is required")
+			return
+		}
+		if req.Type == "" {
+			writeError(w, http.StatusBadRequest, "type is required")
+			return
+		}
+		if req.Value == "" {
+			writeError(w, http.StatusBadRequest, "value is required")
+			return
+		}
+
+		record, err := database.UpdateRecord(id, req.Name, req.Type, req.Value, req.TTL)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "record not found")
+			return
+		}
+		if errors.Is(err, db.ErrConflict) {
+			writeError(w, http.StatusConflict, err.Error())
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
+		writeJSON(w, http.StatusOK, record)
+	}
+}
+
+func deleteRecordHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		idStr := chi.URLParam(r, "id")
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err != nil {
+			writeError(w, http.StatusBadRequest, "invalid record ID")
+			return
+		}
+
+		err = database.DeleteRecord(id)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "record not found")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to delete record")
+			return
+		}
+
+		w.WriteHeader(http.StatusNoContent)
+	}
+}

internal/server/routes.go

@@ -0,0 +1,71 @@
+package server
+
+import (
+	"encoding/json"
+	"log/slog"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+
+	mcdslauth "git.wntrmute.dev/kyle/mcdsl/auth"
+	"git.wntrmute.dev/kyle/mcdsl/health"
+
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+// Deps holds dependencies injected into the REST handlers.
+type Deps struct {
+	DB     *db.DB
+	Auth   *mcdslauth.Authenticator
+	Logger *slog.Logger
+}
+
+// NewRouter builds the chi router with all MCNS REST endpoints.
+func NewRouter(deps Deps) *chi.Mux {
+	r := chi.NewRouter()
+	r.Use(loggingMiddleware(deps.Logger))
+
+	// Public endpoints.
+	r.Post("/v1/auth/login", loginHandler(deps.Auth))
+	r.Get("/v1/health", health.Handler(deps.DB.DB))
+
+	// Authenticated endpoints.
+	r.Group(func(r chi.Router) {
+		r.Use(requireAuth(deps.Auth))
+
+		r.Post("/v1/auth/logout", logoutHandler(deps.Auth))
+
+		// Zone endpoints — reads for all authenticated users, writes for admin.
+		r.Get("/v1/zones", listZonesHandler(deps.DB))
+		r.Get("/v1/zones/{zone}", getZoneHandler(deps.DB))
+
+		// Admin-only zone mutations.
+		r.With(requireAdmin).Post("/v1/zones", createZoneHandler(deps.DB))
+		r.With(requireAdmin).Put("/v1/zones/{zone}", updateZoneHandler(deps.DB))
+		r.With(requireAdmin).Delete("/v1/zones/{zone}", deleteZoneHandler(deps.DB))
+
+		// Record endpoints — reads for all authenticated users, writes for admin.
+		r.Get("/v1/zones/{zone}/records", listRecordsHandler(deps.DB))
+		r.Get("/v1/zones/{zone}/records/{id}", getRecordHandler(deps.DB))
+
+		// Admin-only record mutations.
+		r.With(requireAdmin).Post("/v1/zones/{zone}/records", createRecordHandler(deps.DB))
+		r.With(requireAdmin).Put("/v1/zones/{zone}/records/{id}", updateRecordHandler(deps.DB))
+		r.With(requireAdmin).Delete("/v1/zones/{zone}/records/{id}", deleteRecordHandler(deps.DB))
+	})
+
+	return r
+}
+
+// writeJSON writes a JSON response with the given status code.
+func writeJSON(w http.ResponseWriter, status int, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+// writeError writes a standard error response.
+func writeError(w http.ResponseWriter, status int, message string) {
+	writeJSON(w, status, map[string]string{"error": message})
+}
+

internal/server/zones.go

@@ -0,0 +1,163 @@
+package server
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+
+	"git.wntrmute.dev/kyle/mcns/internal/db"
+)
+
+type createZoneRequest struct {
+	Name       string `json:"name"`
+	PrimaryNS  string `json:"primary_ns"`
+	AdminEmail string `json:"admin_email"`
+	Refresh    int    `json:"refresh"`
+	Retry      int    `json:"retry"`
+	Expire     int    `json:"expire"`
+	MinimumTTL int    `json:"minimum_ttl"`
+}
+
+func listZonesHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, _ *http.Request) {
+		zones, err := database.ListZones()
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to list zones")
+			return
+		}
+		if zones == nil {
+			zones = []db.Zone{}
+		}
+		writeJSON(w, http.StatusOK, map[string]any{"zones": zones})
+	}
+}
+
+func getZoneHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		name := chi.URLParam(r, "zone")
+		zone, err := database.GetZone(name)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "zone not found")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to get zone")
+			return
+		}
+		writeJSON(w, http.StatusOK, zone)
+	}
+}
+
+func createZoneHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req createZoneRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			writeError(w, http.StatusBadRequest, "invalid request body")
+			return
+		}
+
+		if req.Name == "" {
+			writeError(w, http.StatusBadRequest, "name is required")
+			return
+		}
+		if req.PrimaryNS == "" {
+			writeError(w, http.StatusBadRequest, "primary_ns is required")
+			return
+		}
+		if req.AdminEmail == "" {
+			writeError(w, http.StatusBadRequest, "admin_email is required")
+			return
+		}
+
+		// Apply defaults for SOA params.
+		if req.Refresh == 0 {
+			req.Refresh = 3600
+		}
+		if req.Retry == 0 {
+			req.Retry = 600
+		}
+		if req.Expire == 0 {
+			req.Expire = 86400
+		}
+		if req.MinimumTTL == 0 {
+			req.MinimumTTL = 300
+		}
+
+		zone, err := database.CreateZone(req.Name, req.PrimaryNS, req.AdminEmail, req.Refresh, req.Retry, req.Expire, req.MinimumTTL)
+		if errors.Is(err, db.ErrConflict) {
+			writeError(w, http.StatusConflict, err.Error())
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to create zone")
+			return
+		}
+
+		writeJSON(w, http.StatusCreated, zone)
+	}
+}
+
+func updateZoneHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		name := chi.URLParam(r, "zone")
+
+		var req createZoneRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			writeError(w, http.StatusBadRequest, "invalid request body")
+			return
+		}
+
+		if req.PrimaryNS == "" {
+			writeError(w, http.StatusBadRequest, "primary_ns is required")
+			return
+		}
+		if req.AdminEmail == "" {
+			writeError(w, http.StatusBadRequest, "admin_email is required")
+			return
+		}
+		if req.Refresh == 0 {
+			req.Refresh = 3600
+		}
+		if req.Retry == 0 {
+			req.Retry = 600
+		}
+		if req.Expire == 0 {
+			req.Expire = 86400
+		}
+		if req.MinimumTTL == 0 {
+			req.MinimumTTL = 300
+		}
+
+		zone, err := database.UpdateZone(name, req.PrimaryNS, req.AdminEmail, req.Refresh, req.Retry, req.Expire, req.MinimumTTL)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "zone not found")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to update zone")
+			return
+		}
+
+		writeJSON(w, http.StatusOK, zone)
+	}
+}
+
+func deleteZoneHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		name := chi.URLParam(r, "zone")
+
+		err := database.DeleteZone(name)
+		if errors.Is(err, db.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "zone not found")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "failed to delete zone")
+			return
+		}
+
+		w.WriteHeader(http.StatusNoContent)
+	}
+}

proto/mcns/v1/admin.proto

@@ -0,0 +1,16 @@
+syntax = "proto3";
+
+package mcns.v1;
+
+option go_package = "git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1";
+
+// AdminService exposes server health and administrative operations.
+service AdminService {
+  rpc Health(HealthRequest) returns (HealthResponse);
+}
+
+message HealthRequest {}
+
+message HealthResponse {
+  string status = 1;
+}

proto/mcns/v1/auth.proto

@@ -0,0 +1,28 @@
+syntax = "proto3";
+
+package mcns.v1;
+
+option go_package = "git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1";
+
+// AuthService handles authentication by delegating to MCIAS.
+service AuthService {
+  rpc Login(LoginRequest) returns (LoginResponse);
+  rpc Logout(LogoutRequest) returns (LogoutResponse);
+}
+
+message LoginRequest {
+  string username = 1;
+  string password = 2;
+  // TOTP code for two-factor authentication, if enabled on the account.
+  string totp_code = 3;
+}
+
+message LoginResponse {
+  string token = 1;
+}
+
+message LogoutRequest {
+  string token = 1;
+}
+
+message LogoutResponse {}

proto/mcns/v1/record.proto

@@ -0,0 +1,68 @@
+syntax = "proto3";
+
+package mcns.v1;
+
+option go_package = "git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1";
+
+import "google/protobuf/timestamp.proto";
+
+// RecordService manages DNS records within zones.
+service RecordService {
+  rpc ListRecords(ListRecordsRequest) returns (ListRecordsResponse);
+  rpc CreateRecord(CreateRecordRequest) returns (Record);
+  rpc GetRecord(GetRecordRequest) returns (Record);
+  rpc UpdateRecord(UpdateRecordRequest) returns (Record);
+  rpc DeleteRecord(DeleteRecordRequest) returns (DeleteRecordResponse);
+}
+
+message Record {
+  int64 id = 1;
+  // Zone name this record belongs to (e.g. "example.com.").
+  string zone = 2;
+  string name = 3;
+  // DNS record type (A, AAAA, CNAME, MX, TXT, etc.).
+  string type = 4;
+  string value = 5;
+  int32 ttl = 6;
+  google.protobuf.Timestamp created_at = 7;
+  google.protobuf.Timestamp updated_at = 8;
+}
+
+message ListRecordsRequest {
+  string zone = 1;
+  // Optional filter by record name.
+  string name = 2;
+  // Optional filter by record type (A, AAAA, CNAME, etc.).
+  string type = 3;
+}
+
+message ListRecordsResponse {
+  repeated Record records = 1;
+}
+
+message CreateRecordRequest {
+  // Zone name the record will be created in; must reference an existing zone.
+  string zone = 1;
+  string name = 2;
+  string type = 3;
+  string value = 4;
+  int32 ttl = 5;
+}
+
+message GetRecordRequest {
+  int64 id = 1;
+}
+
+message UpdateRecordRequest {
+  int64 id = 1;
+  string name = 2;
+  string type = 3;
+  string value = 4;
+  int32 ttl = 5;
+}
+
+message DeleteRecordRequest {
+  int64 id = 1;
+}
+
+message DeleteRecordResponse {}

proto/mcns/v1/zone.proto

@@ -0,0 +1,66 @@
+syntax = "proto3";
+
+package mcns.v1;
+
+option go_package = "git.wntrmute.dev/kyle/mcns/gen/mcns/v1;mcnsv1";
+
+import "google/protobuf/timestamp.proto";
+
+// ZoneService manages DNS zones and their SOA parameters.
+service ZoneService {
+  rpc ListZones(ListZonesRequest) returns (ListZonesResponse);
+  rpc CreateZone(CreateZoneRequest) returns (Zone);
+  rpc GetZone(GetZoneRequest) returns (Zone);
+  rpc UpdateZone(UpdateZoneRequest) returns (Zone);
+  rpc DeleteZone(DeleteZoneRequest) returns (DeleteZoneResponse);
+}
+
+message Zone {
+  int64 id = 1;
+  string name = 2;
+  string primary_ns = 3;
+  string admin_email = 4;
+  int32 refresh = 5;
+  int32 retry = 6;
+  int32 expire = 7;
+  int32 minimum_ttl = 8;
+  int64 serial = 9;
+  google.protobuf.Timestamp created_at = 10;
+  google.protobuf.Timestamp updated_at = 11;
+}
+
+message ListZonesRequest {}
+
+message ListZonesResponse {
+  repeated Zone zones = 1;
+}
+
+message CreateZoneRequest {
+  string name = 1;
+  string primary_ns = 2;
+  string admin_email = 3;
+  int32 refresh = 4;
+  int32 retry = 5;
+  int32 expire = 6;
+  int32 minimum_ttl = 7;
+}
+
+message GetZoneRequest {
+  string name = 1;
+}
+
+message UpdateZoneRequest {
+  string name = 1;
+  string primary_ns = 2;
+  string admin_email = 3;
+  int32 refresh = 4;
+  int32 retry = 5;
+  int32 expire = 6;
+  int32 minimum_ttl = 7;
+}
+
+message DeleteZoneRequest {
+  string name = 1;
+}
+
+message DeleteZoneResponse {}

zones/mcp.metacircular.net.zone

@@ -1,26 +0,0 @@
-; Node addresses for Metacircular platform.
-; Maps node names to their network addresses.
-;
-; When MCNS is built, these will be managed via the MCNS API.
-; Until then, this file is manually maintained.
-
-$ORIGIN mcp.metacircular.net.
-$TTL 300
-
-@   IN SOA  ns.mcp.metacircular.net. admin.metacircular.net. (
-        2026032501  ; serial (YYYYMMDDNN)
-        3600        ; refresh
-        600         ; retry
-        86400       ; expire
-        300         ; minimum TTL
-    )
-
-    IN NS   ns.mcp.metacircular.net.
-
-; --- Nodes ---
-rift    IN A    192.168.88.181
-rift    IN A    100.95.252.120
-
-; ns record target — points to rift where CoreDNS runs.
-ns      IN A    192.168.88.181
-ns      IN A    100.95.252.120

zones/svc.mcp.metacircular.net.zone

@@ -1,28 +0,0 @@
-; Internal service addresses for Metacircular platform.
-; Maps service names to the node where they currently run.
-;
-; When MCNS is built, MCP will manage these records dynamically.
-; Until then, this file is manually maintained.
-
-$ORIGIN svc.mcp.metacircular.net.
-$TTL 300
-
-@   IN SOA  ns.mcp.metacircular.net. admin.metacircular.net. (
-        2026032601  ; serial (YYYYMMDDNN)
-        3600        ; refresh
-        600         ; retry
-        86400       ; expire
-        300         ; minimum TTL
-    )
-
-    IN NS   ns.mcp.metacircular.net.
-
-; --- Services on rift ---
-metacrypt   IN A    192.168.88.181
-metacrypt   IN A    100.95.252.120
-mcr         IN A    192.168.88.181
-mcr         IN A    100.95.252.120
-sgard       IN A    192.168.88.181
-sgard       IN A    100.95.252.120
-mcp-agent   IN A    192.168.88.181
-mcp-agent   IN A    100.95.252.120