117 lines
6.1 KiB
Markdown
117 lines
6.1 KiB
Markdown
# Continuation Prompt — NetBird Mesh / Local LLM Remote Access
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*Paste this entire block as the first message in a new chat.*
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---
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I'm continuing my local infrastructure project. The VPN mesh between my
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desktop, laptop, and phone is built and mostly working — this thread picked
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up mid-way through fixing one specific bug, plus a few smaller things left
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open.
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## Working style (important)
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- One thing at a time, confirmation before moving on.
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- I type every command myself; explain each step, wait for my output/error/"done".
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- No unsolicited finished scripts or configs — I want to understand and
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reproduce each step.
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- Architecture/structural decisions: lay out options + trade-offs first,
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decide together, don't just implement.
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- If I put a **"?"** before a question, I want a short answer only.
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- English throughout (technical topic).
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- End meaningful steps with a short "Done / Learned" bullet-journal note.
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- Check current info/versions before recommending specific tools when it
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matters — this space moves fast.
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## Devices and identities
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| Device | Hostname | NetBird IP | Notes |
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| Desktop | Heimdall-home | `100.105.210.21` | EndeavourOS, user `heimdall`, runs llama-swap |
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| Laptop | heymdall-750xed | `100.105.247.153` | EndeavourOS, user `heymdall`, runs Open WebUI |
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| Phone | — | — | Joined mesh, not yet pointed at anything |
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- Home LAN subnet: `192.168.178.0/24`
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- Desktop's Docker bridge: `172.17.0.0/16`, gateway `172.17.0.1`
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## Fully working / confirmed
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- **NetBird Cloud mesh** — all three devices joined, dashboard shows 3
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peers, peer-to-peer connectivity verified (desktop ↔ laptop ping test,
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direct path not relayed).
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- **llama-swap on the desktop** — running as a proper systemd service
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(`llama-swap.service`, `Restart=on-failure`, enabled for boot). Old
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manually-run process was killed cleanly; no port conflict.
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- **UFW on the desktop** — installed, default-deny incoming / default-allow
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outgoing. Port 8080 (llama-swap) restricted to the `wt0` (NetBird)
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interface only — verified from the laptop: mesh access works, raw LAN
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access is blocked (hangs/times out, doesn't refuse instantly).
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- **Desktop sleep prevention** — confirmed KDE PowerDevil and
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`systemd-logind` both defaulted to no idle action; additionally hard-masked
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`sleep.target`, `suspend.target`, `hibernate.target`, `hybrid-sleep.target`
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at the systemd level as a belt-and-suspenders guarantee.
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- **Open WebUI on the laptop** (Docker) — installed, connected to the
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desktop's llama-swap via `http://100.105.210.21:8080/v1`, all configured
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models (`daily`, `coder-fim`, `architect`, etc.) tested and confirmed
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working with real inference, not just model-list loading.
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- **Cline on the laptop** — pointed at the desktop's llama-swap, confirmed
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working.
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- **Phone** — added to the NetBird mesh, shows as a connected peer. Not yet
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pointed at anything (see below).
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## 🔴 Immediate unresolved issue (where this thread left off)
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**The desktop's own Open WebUI container can't reach the desktop's own
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llama-swap.** Its connection is configured as `host.docker.internal:8080`.
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- Root cause **confirmed** via `sudo journalctl -k | grep -i block`: UFW is
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blocking the request. `host.docker.internal` resolves to the Docker
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bridge gateway (`172.17.0.1`), so the request arrives on the `docker0`
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interface — which was never given an allow rule (Step 4 in the setup
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guide only opened `wt0`).
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- **Fix identified but not yet confirmed executed/tested:**
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```bash
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sudo ufw allow in on docker0 to any port 8080 proto tcp
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```
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- **Next action:** have the user run that command, then send a real test
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message from the desktop's Open WebUI, then confirm with
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`sudo journalctl -u llama-swap -n 5 --no-pager` that a fresh request
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appears from the container's Docker IP (`172.17.0.2`).
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## Other open items (not urgent, in rough priority order)
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1. **Laptop's Open WebUI (port 3000)** is still bound to all interfaces
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(`0.0.0.0`), reachable on whatever network the laptop happens to be
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connected to — not just the mesh. A fix was proposed (rebind the Docker
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port publish to the laptop's specific NetBird IP,
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`-p 100.105.247.153:3000:8080`) but never executed — the conversation
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moved to the desktop bug above before this was actioned.
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2. **Phone → Open WebUI** — not yet tested end to end. Depends on resolving
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item 1 first (decide whether phone should reach the laptop's Open WebUI
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via its LAN IP or mesh IP going forward).
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3. **SSH remote access to the desktop** — deliberately deferred by the user
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("when I have time to set up correctly"). Current state: SSH daemon is
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running on the desktop, but UFW has no rule for port 22 at all, so it's
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unreachable remotely (local keyboard access only). No key-based auth set
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up yet either — would need a new ed25519 keypair on the laptop (per the
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user's per-device key policy) plus a UFW rule, likely scoped to the home
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LAN subnet specifically (not just `wt0`) so it still works as a fallback
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if NetBird itself is ever the thing that's broken.
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4. **Docker's general iptables/UFW interaction** — flagged as a topic worth
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understanding properly later (the `DOCKER-USER` chain approach), since it
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will likely recur with future Dockerized services. Not blocking anything
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right now — the desktop/laptop specific cases so far have had narrower
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fixes that didn't require it.
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5. **Vault entries** — three candidates were identified and offered to the
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user, but no response yet on which (if any) to draft:
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- Kernel/module mismatch after an unrebooted update (general Arch lesson)
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- Instant refusal vs. hang/timeout as a firewall diagnostic signal
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- Docker bypassing UFW for published ports (the *incoming* case, distinct
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from the `docker0`-outbound case solved in this session)
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## Reference: full setup as documented
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A companion tutorial-style document (`README-netbird-mesh-llm-setup.md`)
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captures every step taken so far in reproducible form, including the two
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non-obvious pitfalls hit along the way (kernel/module mismatch, and the
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`docker0` UFW gap). Bring that in if a fresh recreation or a review of
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exact commands is needed.
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