Frank
0f59316be9
- new docs/Infrastructure/Pi-hole.md (quadlet, records, upstream, web UI, failure modes incl. the rootless /etc/hosts single-label echo) - LAN-DNS.md: Pi-hole quadlet section, router hand-off, host DNS - Network Architecture / Caddy / Homepage / index / AGENTS.md: name swap
63 lines
2.6 KiB
Markdown
63 lines
2.6 KiB
Markdown
# Network Architecture
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One Caddy fronts both hosts. It runs as a container on Dankclaw (192.168.0.143) and terminates TLS for every service on the LAN. Pi-hole on Dankclaw answers the service names for LAN clients; Porkbun answers them for the WAN. The G36 router firewall governs external access. SearXNG outbound traffic exits through the Gluetun VPN container.
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## Topology
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```mermaid
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graph TB
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subgraph WAN["G36 router 192.168.0.1"]
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EXT[Internet]
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end
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EXT -->|port forwards| C
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subgraph Dankclaw[192.168.0.143]
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C[Caddy :80 :443]
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D[Pi-hole :53]
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C -->|comfyui:8188| F[ComfyUI]
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C -->|192.168.0.143:3000| G[Gitea quadlet]
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C -->|192.168.0.143:8081| SE[SearXNG quadlet]
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C -->|192.168.0.143:3005| O[OpenWebUI quadlet]
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SE -->|network_mode service| GL[Gluetun VPN]
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GL -->|tunnel| EXT
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end
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subgraph Dankserver[192.168.0.235]
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C -->|192.168.0.235:8085| R[RomM]
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C -->|192.168.0.235:3923| P[Copyparty]
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C -->|192.168.0.235:8083| W[Calibre-Web]
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C -->|192.168.0.235:32400| PL[Plex host service]
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end
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CLIENT[LAN clients] -->|DHCP DNS| D
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```
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Dankserver runs no proxy of its own. Its services expose published LAN ports, and the Dankclaw Caddy routes the names to those ports.
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## Hostnames
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| Scope | Convention | Resolved by |
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|-------|------------|-------------|
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| LAN | `romm.franksdank.cloud` → 192.168.0.143 | Pi-hole (`addn-hosts`) |
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| WAN | `romm.franksdank.cloud` → 71.227.227.172 | Porkbun A record |
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Users type a name and nothing else. Caddy maps the name to the upstream. The split between the two resolvers removes the need for router NAT loopback. See [[LAN-DNS]] for the flow and the router hand-off.
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## TLS
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Caddy holds one Let's Encrypt certificate per vhost, issued and renewed through the DNS-01 challenge via the Porkbun module. No inbound port 80/443 is required. Details in [[Caddy]].
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## Gluetun Path (SearXNG only)
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SearXNG attaches to the Gluetun network namespace (`network_mode: service:gluetun`). Only SearXNG shares the tunnel. Everything else on Dankclaw uses the normal LAN route. This matches KB Pattern 2 in [[Gluetun]].
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## Access Policy
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- The **G36 router firewall** governs what the WAN can reach. Port forwards are manual router steps; the repo tracks no router state.
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- Caddy adds HTTP basic auth on the homepage and on sensitive services.
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- LAN subnet: `192.168.0.0/24`.
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## See Also
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- [[LAN-DNS]] — name resolution, Pi-hole, router hand-off
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- [[Caddy]] — vhost map, TLS, basic auth
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- [[Dankserver Stack]], [[Dankclaw Stack]]
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- [[Gluetun]]
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- Knowledge base: [[Gluetun]], [[SearXNG]] |