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keycloak-pattern/docs/evidence/c2-backchannel-logout/04-reachability.txt
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DongHyeonkaandClaude Opus 5 6c310c93b7 docs: C-2 — nothing propagates because nobody implemented the receiving end
Neither client had a backchannel logout URL and the BFF has no oidcLogout configuration, so the three candidate paths all answer 302, which is the authentication redirect rather than a handler. Setting the URL on the identity provider alone changed nothing: with a live session, logging the user out emptied the Keycloak side and left the Redis session untouched.

Reachability is not the blocker here, since a Keycloak pod fetches the app's public URL with a 200, but that is a property of this tailnet split-DNS lab and is the assumption most likely to fail in production, where it fails silently.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 14:56:58 +09:00

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=== IdP 세션은 실제로 끊겼는가 ===
keycloak-patterns 세션: 0
=== ★ Keycloak 파드가 app1.hyeonworks.com 에 닿는가 ===
DNS 해석:
Address: 100.83.212.4
Non-authoritative answer:
HTTPS 도달:
HTTP 200 (0 이면 못 닿음)
=== Keycloak 로그 전체에서 backchannel 흔적 ===
keycloak-0: 0 줄
keycloak-1: 0 줄