Root cause: PMTU black hole on WireGuard tunnel. The tunnel runs over
the HE IPv6 6in4 tunnel (gif0 MTU 1280). With WG overhead (~80 bytes),
effective inner MTU is 1200 — but both sides were configured at 1420.
SSH kex packets >1200 bytes were silently dropped.
Fix: Set tun_wg0 MTU to 1200 on pfSense + peer_855 MTU to 1200 on
London GL-iNet. Re-enabled London DHCP/ARP import in remote CronJob.
All 3 sites now fully automated:
- Sofia: Kea leases + ARP every 5min
- London: DHCP + ARP via pfSense→London SSH hop, hourly
- Valchedrym: DHCP + ARP via pfSense→OpenWRT SSH hop, hourly
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ProxmoxMetricsMissing alert was firing because pve_* metrics were
excluded from the kubernetes-service-endpoints metric_relabel_configs
whitelist. The exporter was scraping successfully but metrics were
being dropped before ingestion.
- Sofia import (every 5min): Kea leases + pfSense ARP via SSH
- Remote import (hourly): Valchedrym DHCP/ARP via pfSense SSH hop
- London SSH (dropbear) hangs during kex on low-power router — disabled
for now, data imported manually. TODO: lightweight push agent
- Fixed SSH key filename (id_rsa, not id_ed25519) for RSA keys
- No more ping sweeping anywhere — all passive DHCP/ARP data
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Document fixes from 2026-04-10 London network debugging session:
- pfSense WG now dual-stack (IPv4+IPv6 via HE tunnel gif0 pf rule)
- GL-iNet AllowedIPs must be single comma-separated UCI entry (parse bug)
- AdGuardHome/carrier-monitor must not use 1.1.1.1 (conntrack + rate limit)
- Expanded troubleshooting for site-to-site tunnel disconnects
Nextcloud persists dbpassword in config.php on its PVC and ignores
MYSQL_PASSWORD env var after initial install. When Vault rotates the
MySQL password, config.php goes stale causing HTTP 500 crash loops.
Adds a before-starting hook that patches config.php with the current
MYSQL_PASSWORD on every pod start. Combined with Stakater Reloader
annotation, the full rotation chain is now automated:
Vault rotates → ESO syncs Secret → Reloader restarts pod → hook
patches config.php → Nextcloud connects with new password.
Also fixes stale existingClaim (nextcloud-data-iscsi → nextcloud-data-proxmox).
- CronJob now SSHs to Valchedrym OpenWRT (192.168.0.1) to pull DHCP leases + ARP table
- Parses /tmp/dhcp.leases for hostname + MAC, /proc/net/arp for additional devices
- London still uses ping sweep via pfSense WG tunnel (no SSH access to GL-iNet)
- 6 Valchedrym devices tracked: router, alarm, video, termoregulator, 2 clients
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
All device discovery now handled by phpipam-pfsense-import CronJob
which queries Kea DHCP leases + pfSense ARP table every 5min.
No active scanning needed — pfSense sees all devices passively.
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- New CronJob `phpipam-pfsense-import` runs every 5min
- Queries Kea DHCP lease API (IP + MAC + hostname for all DHCP clients)
- Queries pfSense ARP table (IP + MAC for static IP devices)
- Imports into phpIPAM MySQL: new hosts get inserted, existing get MAC/hostname updates
- Reduced fping scan interval from 15min to 24h (weekly audit only)
- Faster, quieter, gets MACs (fping didn't), gets Kea hostnames
- SSH key (RSA PEM) stored in Vault, synced via ExternalSecret
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- CronJob now pulls hostnames FROM Technitium INTO phpIPAM for unnamed entries
(reverse sync: Kea DDNS registers → Technitium PTR → phpIPAM hostname)
- Kea DHCP4 now serves 192.168.1.0/24 via pfSense WAN (vtnet0)
- 42 MAC→IP reservations for all known LAN devices
- Kea DDNS registers 192.168.1.x hosts in Technitium (forward + reverse)
- DHCP pool .150-.199 for unknown devices
- Technitium update ACL extended to include 192.168.1.2 (pfSense WAN)
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- CronJob syncs phpIPAM hosts → Technitium DNS (A + PTR records) every 15min
- Queries phpIPAM MySQL directly for named hosts, pushes to Technitium API
- Covers 192.168.1.0/24 LAN (TP-Link DHCP, not Kea-managed)
- Kea DDNS configured on pfSense for 10.0.10.0/24 + 10.0.20.0/24 subnets
- Technitium zones accept dynamic updates from pfSense IPs (10.0.20.1, 10.0.10.1)
- 5 reverse DNS zones created (10.0.10, 20.0.10, 1.168.192, 2.3.10, 0.168.192)
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Lightweight IPAM with auto-discovery scanning every 15min via fping.
Replaces disabled NetBox (OOM'd). Uses existing MySQL InnoDB cluster
with Vault-rotated credentials. Cloudflare DNS + Authentik auth.
[ci skip]
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
MySQL 8.4 remapped `utf8` to mean `utf8mb4`, but Nextcloud without this
config sends `COLLATE UTF8_general_ci` (a utf8mb3-only collation) in
queries, causing SQLSTATE[42000] errors that broke occ commands and sync.
Also removed stale `Work 🎯.csv` whose emoji filename was stripped in the
DB filecache (stored as `Work .csv`), causing permanent sync errors.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
