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serverAppConfigs/docs/Architecture/Network Architecture.md
T
Frank 90c4ac69a7 Doc audit: fix all broken links + correct stale facts across the KB
Fanned out 5 read-only doc-auditor subagents (one per service group) that
fact-checked the knowledge base against the live system + repo config,
researched official setup docs online, and verified progress. Applied:
- All 34 broken links fixed (real pages / external URLs / correct relative
  paths); 0 broken links remain. No .AGENTTRASH links (the 4 mentions are
  accurate descriptive text, not links).
- Fact-check fixes: Readarr retired (May 2026), Radarr v4->v6, Calibre
  9.2.1 live, Calibre-Web 0.6.25 live, Copyparty v1.20.21, LLM index
  ncmoe 38 + 786432 ctx, frank-default-small active (not frank-pp-worker),
  Hermes/SearXNG/Grafana hostnames, Loki/Alloy local images, Observability
  diagram (Promtail->Alloy), VLLM retired note, DFlash status, benchmark
  live-drift notes, Homepage test count 116.
2026-08-24 01:10:44 -07:00

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# Network Architecture
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. dnsmasq 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.
## Topology
```mermaid
graph TB
subgraph WAN["G36 router 192.168.0.1"]
EXT[Internet]
end
EXT -->|port forwards| C
subgraph Dankclaw[192.168.0.143]
C[Caddy :80 :443]
D[dnsmasq :53]
C -->|comfyui:8188| F[ComfyUI]
C -->|192.168.0.143:3000| G[Gitea quadlet]
C -->|192.168.0.143:8081| SE[SearXNG quadlet]
C -->|192.168.0.143:3005| O[OpenWebUI quadlet]
SE -->|network_mode service| GL[Gluetun VPN]
GL -->|tunnel| EXT
end
subgraph Dankserver[192.168.0.235]
C -->|192.168.0.235:8085| R[RomM]
C -->|192.168.0.235:3923| P[Copyparty]
C -->|192.168.0.235:8083| W[Calibre-Web]
C -->|192.168.0.235:32400| PL[Plex host service]
end
CLIENT[LAN clients] -->|DHCP DNS| D
```
Dankserver runs no proxy of its own. Its services expose published LAN ports, and the Dankclaw Caddy routes the names to those ports.
## Hostnames
| Scope | Convention | Resolved by |
|-------|------------|-------------|
| LAN | `romm.franksdank.cloud` → 192.168.0.143 | dnsmasq (`addn-hosts`) |
| WAN | `romm.franksdank.cloud` → 71.227.227.172 | Porkbun A record |
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.
## TLS
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]].
## Gluetun Path (SearXNG only)
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]].
## Access Policy
- The **G36 router firewall** governs what the WAN can reach. Port forwards are manual router steps; the repo tracks no router state.
- Caddy adds HTTP basic auth on the homepage and on sensitive services.
- LAN subnet: `192.168.0.0/24`.
## See Also
- [[LAN-DNS]] — name resolution, dnsmasq, router hand-off
- [[Caddy]] — vhost map, TLS, basic auth
- [[Dankserver Stack]], [[Dankclaw Stack]]
- [[Gluetun]]
- Knowledge base: [[Gluetun]], [[SearXNG]]