Julien LutranandClaude Opus 5
7e6b8f2848
Follow-up to a7f1ac6. The Archer C7's DHCP reservations did not carry
over to the FTTH box, so anything still on DHCP was one lease renew away
from moving — as blocky already demonstrated by taking LAN DNS with it.
jellyfin-server and jellyfin-client are now static too; homeassistant
stays dynamic on purpose (it never had a reservation).
Records three things that cost time to find:
- jellyfin-client can never use netplan: the kiosk raw.lxc bind-mounts
the host /run/udev read-only, so netplan generate fails and config
silently does not regenerate at boot. It uses systemd-networkd now.
- LAPTOP719974 and patate also lost their reserved addresses.
- ks4 cannot serve as an IPv6 exit: it has a global v6 address and a
default v6 route but no working v6 egress, so extending the torrent
tunnel to ::/0 is not an option. IPv6 stays disabled in the container.
Also notes the C7 + LTE box kept as fallback: only the gateway differs.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
51 lines
3.4 KiB
Markdown
51 lines
3.4 KiB
Markdown
# Storage: nas
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Storage + backup host on the LAN, added 2026-08.
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- **Always-on host.** nuc is now an on-demand media box (see
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[nuc/README.md](../nuc/README.md)), so everything that must stay up —
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LAN DNS, the HTTP proxy, torrents — lives here.
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- Debian 13, Supermicro **A1SAi-2750F** / Intel Atom C2750 (8 c, 20 W,
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ECC DDR3) — build procedure: [nas-install.md](nas-install.md)
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- SSH: `ssh -i id_rsa_claude root@192.168.0.4`
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- **No iGPU** (Avoton is headless; video is the AST2400 BMC). Anything
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needing hardware transcoding stays on nuc.
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- Pools:
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- `incus` — ZFS mirror across the last partition of both 120 GB SSDs;
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holds this host's container roots. OS itself is on mdraid RAID1 +
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ext4 across the same disks (rationale in
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[nas-install.md](nas-install.md) §2).
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- `tank` — the 4 TB WD Red, **on direct SATA**. This is the whole
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point of the box: the disk used to hang off a JMicron USB bridge on
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nuc that suspended the pool 61 times in 30 days
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([nuc/usb4t-dropouts.md](../nuc/usb4t-dropouts.md)). Single vdev,
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accepted — nothing on it is irreplaceable.
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- `tank/media` → `/export/media`: the media library. Exported
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**read-only over NFSv4 to nuc**, where `jellyfin-server` reads it;
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written locally only by `transmission-bt`.
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- Backups: nuc ↔ nas **cross-replication** (each host's instances live
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on the other), plus the ks4 pull leg —
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[nas-install.md](nas-install.md) §9,
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[ks2/nas-seed.md](../ks2/nas-seed.md).
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## Instances
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| Name | IP | Doc | Features |
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| blocky | 192.168.0.254 | — | unprivileged, autostart; DNS ad-blocker for the LAN. Moved from nuc 2026-08-30 so it survives nuc being powered off |
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| privoxy | 192.168.0.11 | — | unprivileged, autostart; filtering HTTP proxy, listens on **:3128** (not privoxy's default 8118); static config in `/etc/systemd/network/eth0.network` (`Gateway=192.168.0.1`), `DNS=192.168.0.254`. Moved from nuc 2026-08-30 |
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| [transmission-bt](transmission-bt.md) | 192.168.0.7 | ✅ | unprivileged, autostart; always-on WireGuard full tunnel → ks4 (egress = 193.70.35.17, kill switch: no default route in `main`, wg-quick's `fwmark`/`suppress_prefixlength` rules send traffic to table 51820 — **`netplan apply` wipes those rules, so always `systemctl restart wg-quick@wg0` after it**); **IPv6 disabled** (`/etc/sysctl.d/99-no-ipv6.conf`) since the tunnel is `AllowedIPs = 0.0.0.0/0` only and the FTTH box's native IPv6 RA bypassed the kill switch entirely. Extending the tunnel to `::/0` is **not currently possible**: ks4 has a global v6 address and a default v6 route but **no working v6 egress** (verified 2026-09-16 — both ICMP and TCP to the v6 internet fail while v4 is fine), so it cannot act as a v6 exit. Fix OVH v6 on ks4 first if v6 peers are ever wanted; `/export/media` disk device (`shift=true`), downloads to `/media/downloads`; web UI :9091 (LAN only). Moved from nuc 2026-08-30 |
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## Backup pools hosted here
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| incus pool | dataset | receives |
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| `nucbackup` | `tank/backup/nuc` | nuc's instances (pushed nightly, 03:30) |
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| `ks4backup` | `tank/backup/ks4` | ks4's instances (pulled over WG, 05:00 — after FTTH) |
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| `nasbackup` | `tank/backup/nas` | **nas's own** instances (local copy, 04:00) |
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nas's own instances are replicated **locally** rather than to nuc: nuc is
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an on-demand box and usually powered off, so it is not a usable backup
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target. `nasbackup` lives on `tank`, a different pool from the `incus`
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SSD mirror the instances run on.
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