docs: [#28] add IPv6 AAAA record configuration to Hetzner DNS setup

- Add section 7.3 for IPv6 AAAA record creation in Hetzner setup guide
- Include working curl commands for tracker and grafana AAAA records
- Add IPv6 verification steps with dig commands for dual-stack testing
- Update session documentation with IPv6 completion status
- Complete dual-stack DNS configuration: IPv4 + IPv6 for staging environment

Tested configuration:
- tracker.staging-torrust-demo.com: 78.47.140.132 (A) + 2a01:4f8:1c17:a01d::1 (AAAA)
- grafana.staging-torrust-demo.com: 78.47.140.132 (A) + 2a01:4f8:1c17:a01d::1 (AAAA)

All DNS records verified working via dig commands.

Author: josecelano

docs/guides/providers/hetzner/hetzner-cloud-setup-guide.md

@@ -616,21 +616,106 @@ curl -s -H "Auth-API-Token: $HETZNER_DNS_API_TOKEN" \
 }
 ```
 
-### 7.3 Verify DNS Configuration
+### 7.3 Create DNS AAAA Records (IPv6)
+
+Create AAAA records for IPv6 dual-stack connectivity:
+
+```bash
+# Create tracker subdomain AAAA record
+curl -s -H "Auth-API-Token: $HETZNER_DNS_API_TOKEN" \
+  -H "Content-Type: application/json" \
+  -X POST \
+  -d '{
+    "type": "AAAA",
+    "name": "tracker",
+    "value": "2a01:4f8:1c17:a01d::1",
+    "ttl": 300,
+    "zone_id": "hbpTmpwZJw6xbKqbudCiDb"
+  }' \
+  "https://dns.hetzner.com/api/v1/records" | jq
+
+# Create grafana subdomain AAAA record
+curl -s -H "Auth-API-Token: $HETZNER_DNS_API_TOKEN" \
+  -H "Content-Type: application/json" \
+  -X POST \
+  -d '{
+    "type": "AAAA",
+    "name": "grafana",
+    "value": "2a01:4f8:1c17:a01d::1",
+    "ttl": 300,
+    "zone_id": "hbpTmpwZJw6xbKqbudCiDb"
+  }' \
+  "https://dns.hetzner.com/api/v1/records" | jq
+```
+
+**Expected Response for each IPv6 record:**
+
+```json
+{
+  "record": {
+    "id": "f1a2926dde3b57396b863c66b139fad5",
+    "type": "AAAA",
+    "name": "tracker",
+    "value": "2a01:4f8:1c17:a01d::1",
+    "ttl": 300,
+    "zone_id": "hbpTmpwZJw6xbKqbudCiDb",
+    "created": "2025-08-08T14:33:36.497Z",
+    "modified": "2025-08-08T14:33:36.497Z"
+  }
+}
+```
+
+### 7.4 Verify DNS Configuration
 
 Verify your DNS records are created correctly:
 
+#### List All DNS Records
+
 ```bash
 # List all records in your zone
 curl -s -H "Auth-API-Token: $HETZNER_DNS_API_TOKEN" \
-  "https://dns.hetzner.com/api/v1/records?zone_id=Vpew4Pb3YoDjBVHMvV9AHB" | jq
+  "https://dns.hetzner.com/api/v1/records?zone_id=hbpTmpwZJw6xbKqbudCiDb" | jq
+```
+
+#### Test IPv4 (A Records)
+
+```bash
+# Test IPv4 DNS resolution
+dig A tracker.staging-torrust-demo.com +short
+dig A grafana.staging-torrust-demo.com +short
+
+# Expected output for both commands:
+# 78.47.140.132
+```
 
-# Test DNS resolution
+#### Test IPv6 (AAAA Records)
+
+```bash
+# Test IPv6 DNS resolution
+dig AAAA tracker.staging-torrust-demo.com +short
+dig AAAA grafana.staging-torrust-demo.com +short
+
+# Expected output for both commands:
+# 2a01:4f8:1c17:a01d::1
+```
+
+#### Complete DNS Query
+
+```bash
+# View complete DNS information
 dig tracker.staging-torrust-demo.com
 dig grafana.staging-torrust-demo.com
 ```
 
-### 7.4 Configure Nameservers at Domain Registrar
+#### Test Dual-Stack Connectivity (Optional)
+
+```bash
+# Test both IPv4 and IPv6 connectivity (requires deployed application)
+curl -4 -s http://tracker.staging-torrust-demo.com/api/health_check || echo "IPv4 not ready"
+curl -6 -s http://tracker.staging-torrust-demo.com/api/health_check || echo "IPv6 not ready"
+```
+
+### 7.5 Configure Nameservers at Domain Registrar
 
 Finally, configure your domain registrar to use Hetzner's nameservers:
 

docs/testing/manual-sessions/2025-08-08-issue-28-phase-4-7-staging.md

@@ -119,18 +119,39 @@ Expected:
 - UDP/HTTP tracker announce
 - Grafana reachable at https://grafana.staging-torrust-demo.com
 
-### Phase 6: Wrap-up
+### Phase 6: IPv6 Dual-Stack DNS Setup
+
+- ✅ Created IPv6 AAAA records for complete dual-stack configuration
+- ✅ tracker.staging-torrust-demo.com → 2a01:4f8:1c17:a01d::1 (AAAA record)
+- ✅ grafana.staging-torrust-demo.com → 2a01:4f8:1c17:a01d::1 (AAAA record)
+- ✅ Verified IPv6 DNS resolution working correctly
+- ✅ Updated Hetzner setup guide with IPv6 examples and verification tests
+
+### Phase 7: Wrap-up
 
 - Document issues and fixes
 - Optionally keep infra running for further tests or destroy
 
+## DNS Configuration Summary
+
+### IPv4 (A Records) - ✅ Complete
+
+- tracker.staging-torrust-demo.com → 78.47.140.132
+- grafana.staging-torrust-demo.com → 78.47.140.132
+
+### IPv6 (AAAA Records) - ✅ Complete
+
+- tracker.staging-torrust-demo.com → 2a01:4f8:1c17:a01d::1
+- grafana.staging-torrust-demo.com → 2a01:4f8:1c17:a01d::1
+
 ## Open Items / Issues Noted During Session
 
-- [ ]
+- [ ] Optional: Test IPv6 connectivity to deployed application (requires application deployment)
 
 ## Final Status
 
-- Infrastructure: TBD
-- Application: TBD
-- SSL: TBD
-- External access: TBD
+- Infrastructure: ✅ Complete (Hetzner Cloud VM with dual-stack DNS)
+- Application: Pending (DNS infrastructure ready for deployment)
+- SSL: Pending (DNS ready for SSL certificate generation)
+- External access: ✅ Complete (dual-stack DNS resolution working)
+- DNS Configuration: ✅ Complete (IPv4 + IPv6 dual-stack)

project-words.txt

@@ -11,6 +11,7 @@ certbot
 certonly
 challtestsrv
 cloudinit
+codel
 commoninit
 conntrack
 containerd
@@ -69,6 +70,7 @@ mysqladmin
 Namecheap
 netcat
 netdev
+netplan
 networkd
 networkor
 newgrp
@@ -100,6 +102,8 @@ privkey
 publickey
 pwauth
 qcow
+qdisc
+qlen
 repomix
 rmem
 runcmd
@@ -129,6 +133,7 @@ vcpus
 virbr
 virsh
 virt
+Vpew
 webroot
 whatsmydns
 wmem