leftmost XFF decides who is on the LAN (remote-access and IP-filter bypass). Once traefik trusts the tunnel's fixed address (controller v0.286.0), the leftmost entry is what a
stranger writes; with the chain removed the app reads traefik's X-Real-Ip or its peer, as before — never forgeable.
Measured on 9202: a router with this middleware receives no X-Forwarded-For (felhom.eu audits/visitors-2026-10-01/A/P1).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
Bench 9401 (harness v4, swap 0): the startup-wizard user seeded and read back before and after,
10-min memory watch 0 kills (anon peak 4.7 %); the abort starts and serves. Box 9202: the guarded
Update done in 23.6 s through the setup gate, read back. Written by upgrade-test.py --write-ladder;
the superseded step keeps its definition in steps/.
Evidence: felhom.eu/documentation/audits/more-night-apps-2026-09-30/
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
Walked through the product's own guarded Update on scratch guest 9202 during the
twenty-eight drill, seeded and read back through the app's own front door.
Evidence: felhom.eu/documentation/audits/the-28-2026-09-22/apps/emby/verdict.json
catalog_since -> 2026-09-22 (R-452).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
The healthcheck ran 'curl -f', but the Emby image has neither curl nor a
standalone wget -- only BusyBox. The probe ENOENT'd every run, the container
stayed permanently unhealthy, and Traefik will not route to an unhealthy
container, so the customer got a 404 while Emby itself was serving fine.
Switched to the BusyBox-wget family via the /bin/busybox multi-call binary.
Campaign 7 catalog sweep.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nn3VgQk9iwEGgyx6QJ2NvE
BusyBox wget (+ node/python/curl one-shots, incl mealie's socket tuple) resolve
localhost -> IPv6 ::1 with no cross-family fallback; an IPv4-only-binding app
reads docker-unhealthy while serving (vaultwarden, re-run 2026-07-06). Escalates
that instance to the class. Scoped strictly to healthcheck test: lines
(diff-reviewed: no env/config/label changed; .felhom.yml already clean). New
REUSE.md convention row.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
All 51 docker-compose.yml: replaced hardcoded subdomain.${DOMAIN}
with ${SUBDOMAIN}.${DOMAIN} in Traefik labels, app env vars, and
comments.
All 51 .felhom.yml: added SUBDOMAIN deploy field (type: subdomain)
with default matching existing subdomain metadata value.
Works with felhom-controller v0.27.0 which validates and stores the
user-chosen subdomain in app.yaml. Existing deployed apps get
SUBDOMAIN auto-injected via InjectMissingFields() on next sync.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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