Auto-sync Fri 2 Jan 01:20:01 CET 2026
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@@ -112,3 +112,46 @@ docker exec transmission curl -s ifconfig.me
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# IP locale
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curl -s ifconfig.me
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```
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## DNS Redondant
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### Architecture
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```
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┌─────────────────────┐ ┌─────────────────────┐
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│ Talloires │ │ Annecy │
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│ dnsmasq (primaire) │ │ dnsmasq (slave) │
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│ 100.116.198.105:53 │◄────│ 10.171.171.50:53 │
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└─────────────────────┘ └─────────────────────┘
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│ │
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└───────────┬───────────────┘
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▼
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Upstream DNS
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(1.1.1.1, 8.8.8.8)
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```
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### Talloires (Primaire)
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- **IP**: 100.116.198.105 (Tailscale)
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- **Config**: `/etc/dnsmasq.d/tailscale.conf`
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- **Upstream**: AdGuard DoH via cloudflared (127.0.0.1:5053)
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### Annecy (Secondaire)
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- **IP**: 10.171.171.50 (LAN)
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- **Config**: `/volume1/docker/dnsmasq/dnsmasq.conf`
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- **Container**: `andyshinn/dnsmasq` (Docker, network_mode: host)
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- **Upstream**: Talloires, puis 1.1.1.1 / 8.8.8.8
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### Test
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```bash
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# Depuis le LAN
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dig @10.171.171.50 talloires.local +short
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dig @10.171.171.50 go +short
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# Depuis Tailscale
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dig @100.116.198.105 talloires.local +short
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```
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### Configuration client
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Pour utiliser les deux DNS en failover, configurer :
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- DNS primaire: 10.171.171.50 (Annecy - LAN)
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- DNS secondaire: 10.171.171.7 (Talloires - si LAN listen activé)
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