Auth and Session Failure
164 incident problems that show up as “Auth and Session Failure”.
먼저 읽을 가이드
추천 문제
All problems (164)
CICD-667A preview environment uses feature flags from production defaults and hides...A preview environment uses feature flags from production defaults and hides... focuses on ci-cd-workflow-debugging and asks the reader to isolate Permission Denied in AWS. 실무에서는 ci-cd-workflow-debugging 문제를 볼 때 실패 단계만 보지 말고 최근 변경, 이미지 태그, 시크릿 주입, 롤백 가능 여부를 먼저 함께 확인하는 편이 빠릅니다.CI/CDIntermediate21 minProSECURITY-029OAuth callback accepted on web tier but rejected after load balancer hopOAuth callback accepted on web tier but rejected is a hands-on troubleshooting drill. The callback parameters are correct, yet one load balancer rewrite alters the host or scheme expected by validation. Identity and Access Management needs to be checked by narrowing scope, rec...SecurityIntermediate22 minProCICD-726A preview environment uses feature flags from production defaults and hides...A preview environment uses feature flags from production defaults and hides... focuses on ci-cd-workflow-debugging and asks the reader to isolate Permission Denied in AWS. 실무에서는 ci-cd-workflow-debugging 문제를 볼 때 실패 단계만 보지 말고 최근 변경, 이미지 태그, 시크릿 주입, 롤백 가능 여부를 먼저 함께 확인하는 편이 빠릅니다.CI/CDIntermediate23 minProK8S-128A service account has automount disabled, and the init job that fetches configuration from the cluster API never receives credentialsMain workload logic is fine, but the initialization phase assumes access to a token that policy has intentionally removed.KubernetesIntermediate15 minProNETWORK-140Both HSRP routers relay DHCP, and clients intermittently receive duplicate offersGateway redundancy is healthy, but an adjacent service now answers twice because both paths forward the same broadcast.NetworkIntermediate15 minProK8S-158The service account token audience is restricted correctly, but the in-cluster dashboard still requests the default audience and loses API accessIdentity hardening worked, yet one client was never updated to the narrowed trust contract.KubernetesIntermediate15 minProK8S-351A ServiceAccount token audience is correct for the main API call while an admission sidecar now forwards the same token to a different verifier during a staged decommissionThe pod identity works in one place and fails when reused in a path with a stricter audience check. The service still works through the primary path, but one dependency only fails when the old component is finally drained away.KubernetesIntermediate16 minProNETWORK-351A VLAN handoff trunks correctly while one voice endpoint still receives LLDP policy from a switch profile that no longer matches the access template during a staged decommissionLayer 2 reachability exists and endpoint policy negotiation does not. The service still works through the primary path, but one dependency only fails when the old component is finally drained away.NetworkIntermediate16 minProNETWORK-142A VLAN translation on the access switch is correct for user traffic, but LLDP frames stay untranslated and IP phones never discover the voice policyData works while onboarding fails because control-plane frames did not follow the same translation assumption.NetworkIntermediate16 minProNETWORK-136DHCP snooping trust is correct in the running config, but stack renumbering loses it from the new uplink member after reloadClient onboarding fails only after a restart because the logical uplink identity changed under the stack.NetworkIntermediate16 minProLINUX-128PAM faillock works on local users, but NFS-backed home directory latency makes remote users appear to authenticate and then fail session setupPassword checks succeed, yet login still breaks because account and session modules depend on slow remote state.LinuxIntermediate16 minProNETWORK-145The DHCP server is reachable, but Option 82 formatting changed during a switch replacement and the server now classifies the circuit incorrectlyAddress assignment survives at layer 3, yet edge identity metadata no longer matches the server's policy rules.NetworkIntermediate16 minProNETWORK-288A campus access stack advertises the voice VLAN while the downstream trunk template still prunes it on the uplink during a failover rehearsalPhones discover the right segment and the wired path never carries it end to end. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.NetworkIntermediate17 minProNETWORK-240A DHCP snooping database is written locally while the standby supervisor never receives the binding state during a failover rehearsalThe live chassis knows the clients and failover starts from an empty trust picture. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.NetworkIntermediate17 minProNETWORK-186A relay path reaches the DHCP server while circuit identity metadata no longer matches the edge that sends it during a failover rehearsalThe server is up and the server-side policy no longer classifies the circuit the way the access layer expects. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.NetworkIntermediate17 minProNETWORK-168User traffic survives a VLAN translation while onboarding protocols never see the same identity during a failover rehearsalThe data plane looks healthy and the control plane for voice or discovery still breaks. Normal traffic masked the issue until the standby or alternate path became active under rehearsal conditions.NetworkIntermediate17 minProK8S-469A ServiceAccount token audience is correct for the main API callA ServiceAccount token audience is correct for the main API call focuses on kubernetes-access-and-policy and asks the reader to isolate Auth and Session Failure. 실무에서는 auth-and-session-failure 증상만 보고 Pod 하나에 매달리지 말고 이벤트, 이전 로그, Service/Endpoint, 최근 배포 변경을 한 번에 묶어 보는 편이 오진을 줄입니다.KubernetesIntermediate18 minProNETWORK-467A VLAN handoff trunks correctly (Auth and Session Failure)A VLAN handoff trunks correctly (Auth and Session Failure) focuses on Switching And Vlan Design and asks the reader to isolate Auth and Session Failure in Cisco. 실무에서는 auth-and-session-failure 이슈를 볼 때 DNS, 라우팅, ACL/방화벽, 목적지 응답을 계층별로 잘라서 확인하면 장애 구간을 훨씬 빠르게 좁힐 수 있습니다.NetworkIntermediate18 minProNETWORK-471A VLAN handoff trunks correctly (Auth and Session Failure)A VLAN handoff trunks correctly (Auth and Session Failure) focuses on Switching And Vlan Design and asks the reader to isolate Auth and Session Failure in Cisco. 실무에서는 auth-and-session-failure 이슈를 볼 때 DNS, 라우팅, ACL/방화벽, 목적지 응답을 계층별로 잘라서 확인하면 장애 구간을 훨씬 빠르게 좁힐 수 있습니다.NetworkIntermediate18 minProK8S-529A ServiceAccount token audience is correct for the main API callA ServiceAccount token audience is correct for the main API call focuses on kubernetes-access-and-policy and asks the reader to isolate Auth and Session Failure. 실무에서는 auth-and-session-failure 증상만 보고 Pod 하나에 매달리지 말고 이벤트, 이전 로그, Service/Endpoint, 최근 배포 변경을 한 번에 묶어 보는 편이 오진을 줄입니다.KubernetesIntermediate19 minPro