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db as source of truth: wiki→seeds, archive old artifacts, knowledge ingestion

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- Migrations 010 (content_hash) + 011 (search tsvector column)
- new: internal/knowledge/seed.go — knowledge seed ingest engine
- new: internal/httpapi/knowledge.go — SearchKnowledge + GetEntityKnowledge
- wire knowledge ingest into oikos seed pipeline
- convert all 36 wiki docs + 6 investigations + 12 runbooks → seeds/knowledge.yaml
- archive: knowledge/wiki/→archive/, oikos/cards/→archive/, .hermes/plans/→archive/
- delete: 9 superseded Python kernel files, ledger/, mcp/build_host_files.py
- remove empty knowledge/ directory tree
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authentik Default Admin
2026-07-07 20:22:30 +02:00
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# Network
Physical and logical network topology for the homelab.
## Why
The homelab runs on a dedicated internal subnet (`192.168.8.0/24`) isolated from the main household LAN (`192.168.178.0/24`). Isolation is enforced at Proxmox: LXC/VM traffic is bridged only on the internal `vmbr0` bridge; Proxmox routes packets out to Fritz!Box via `vmbr1`. The main LAN cannot reach homelab services directly without a Fritz!Box static route (which is configured to allow inbound).
Fritz!OS 8.x does not support second IP networks on LAN ports, so Proxmox (`hubris`) acts as the subnet router rather than the Fritz!Box.
## Hardware
| Device | Role |
|---|---|
| Fritz!Box 7590 | Main router / ISP gateway (`192.168.178.1`) |
| SODOLA 5-Port 2.5Gbit Managed | Homelab switch — flat L2, all ports native |
| hubris (Proxmox) | Subnet router — routes between `192.168.8.0/24` and `192.168.178.0/24` |
## Topology
```
ISP
└── Fritz!Box 7590 (192.168.178.1)
│ static route: 192.168.8.0/24 → 192.168.178.10
│
└── SODOLA 5-Port 2.5Gbit
├── Port 1 uplink → Fritz!Box LAN
├── Port 2 hubris eno1 → vmbr1 (192.168.178.10)
├── Port 3 [device]
├── Port 4 [device]
└── Port 5 spare
hubris internal bridges:
vmbr1 192.168.178.10/24 eno1 (uplink, DHCP-reserved) gateway 192.168.178.1
vmbr0 192.168.8.77/24 no physical port (internal)
192.168.8.1/24 alias — LXC default gateway
├── all 16 LXCs
└── HAOS VM
```
## Subnets
| Subnet | Gateway | Purpose |
|---|---|---|
| `192.168.178.0/24` | `192.168.178.1` | Household LAN — laptops, phones, Fritz!Box DHCP |
| `192.168.8.0/24` | `192.168.8.1` (Proxmox `vmbr0` alias) | Homelab — all LXCs and VMs |
## DHCP
- **Household (`192.168.178.x`)**: Fritz!Box built-in DHCP. Proxmox `vmbr1` has a reservation: MAC `84:47:09:6b:e7:58` → `192.168.178.10`.
- **Homelab (`192.168.8.x`)**: Technitium on [CT 107](../containers/107-dns.md) at `192.168.8.2`. Range `192.168.8.241–192.168.8.254`, gateway `192.168.8.1`, DNS `192.168.8.2`.
Static IPs span `.101–.239` (all LXCs, VMs, and workstations). DHCP pool narrowed to `.241–.254` (2026-06-03) to avoid overlap and IP conflicts.
## DNS
Split-horizon DNS for `*.hubris.network` served by Technitium on [CT 107](../containers/107-dns.md) at `192.168.8.2:53`. See [dns.md](dns.md) for full detail.
## Routing
Proxmox has `net.ipv4.ip_forward=1` (already enabled by PVE). Packets from LXCs on `vmbr0` destined for the internet exit via `vmbr1` → Fritz!Box. Fritz!Box masquerades all outbound WAN traffic. Fritz!Box has a static route (`192.168.8.0/24 → 192.168.178.10`) so return traffic reaches the LXCs.
No NAT on Proxmox — traffic flows without double-NAT.
## Remote access
- **NetBird mesh** — primary path for remote administration. Authenticated via [Authentik on the VPS](../../../vps/).
- **Tailscale** — legacy, being phased out. See [mesh.md](mesh.md).
## Related
- [DNS](dns.md) — split-horizon config and entry list
- [Ingress](ingress.md) — public entry points via VPS traefik
- [Mesh](mesh.md) — NetBird / Tailscale VPN overlay
- [hosts/hubris.md](../hosts/hubris.md) — Proxmox host (vmbr0/vmbr1 config)
- [CT 107 — dns](../containers/107-dns.md) — Technitium DNS + DHCP server
## Changelog
### 2026-06-17 — Fritz!Box DNSv4 server set to Technitium (192.168.8.2)
Household LAN clients (192.168.178.x) now resolve `*.hubris.network` to LAN IPs. Configured in Fritz!Box at Internet → Filter → DNS Server → DNSv4 Server → "Use other DNSv4 servers" → Preferred = `192.168.8.2`. No per-device or Netbird setup needed.
Previous pool `.100–.240` overlapped with all static LXCs/VMs (` .101–.239`), creating IP conflict risk (DHCP could hand out an IP that a static service expects). Shrunk pool to `.241–.254` via Technitium API. No services re-IP'd. 11 stale DHCP leases in `.101–.110` will expire naturally. **Open:** ZimaOS (VM 100) holds DHCP lease `.103` but inventory expects `.195` — needs static IP set inside VM. See [plan](../../../.hermes/plans/2026-06-03_223218-dhcp-pool-exclude-static-ips.md).
### 2026-06-02 — Executed migration; Proxmox as subnet router
Fritz!OS 8.x does not support second IP networks on LAN ports, so the final design uses Proxmox as the router: `vmbr1` (eno1 → SODOLA → Fritz!Box) is the uplink at `192.168.178.10`; `vmbr0` is a portless internal bridge with `192.168.8.1` alias as the LXC gateway. Technitium DHCP enabled for `192.168.8.100–240`. Caddy service unit was missing and recreated. See [migration plan](../../../plans/done/2026-06-01-slate-ax-to-sodola-migration.md).
### 2026-06-01 — Initial network doc; Slate AX retired; SODOLA switch added
Replaced the GL.iNet Slate AX sub-router with the SODOLA 5-Port 2.5Gbit managed switch. Eliminated double-NAT. See [migration plan](../../../plans/done/2026-06-01-slate-ax-to-sodola-migration.md).