Linux
390 incident problems in Linux environments.
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All problems (390)
LINUX-1387A tmpfiles cleanup removes the app cache every bootA tmpfiles cleanup removes the app cache every boot focuses on cluster-maintenance and asks the reader to isolate the key signal in Linux. Path semantic changes can quietly bring an app under cleanup rules it was never designed to tolerate.LinuxIntermediate10 minProLINUX-1399An rsyslog failover path works and one destination receives events with wrong...An rsyslog failover path works and one destination receives events with... focuses on incident-response and asks the reader to isolate the key signal in Linux. Split logging branches can diverge in subtle data-shaping ways even when transport su...LinuxIntermediate10 minProLINUX-1397A bridge interface works and one VLAN loses DHCPA host bridge cleanup modernizes VLAN handling and later one attached appliance stops receiving DHCP only after reboot.LinuxIntermediate11 minProLINUX-1326A cron script succeeds manually and fails at nightA maintenance script is verified interactively and later fails only when triggered on schedule during the night.LinuxIntermediate11 minProLINUX-1367A cron task succeeds by hand and fails at nightA maintenance script is validated interactively and later fails only in scheduled overnight execution.LinuxIntermediate11 minProLINUX-1383A dnf module stream migration succeeds on most hosts and one host keeps the old runtimeA fleet standardizes on a new runtime stream and one machine alone keeps reverting to the previous module set.LinuxIntermediate11 minProLINUX-1385A journald forwarding pipeline stops (journald-forwarding-unit-pointed-at-old-cert-path)A journald forwarding pipeline stops (journald-forwarding-unit-pointed-at-old... focuses on incident-response and asks the reader to isolate the key signal in Linux. Systemd-managed forwarding often fails at variable indirection layers rather...LinuxIntermediate11 minProLINUX-1339A shell script works on Ubuntu and fails on FedoraA shell script works on Ubuntu and fails on Fedora focuses on incident-response and asks the reader to isolate the key signal in Linux. Cross-distro scripting breaks more often on environment assumptions than on missing binaries.LinuxIntermediate11 minProLINUX-1391A systemd service starts manually and fails on bootA systemd service starts manually and fails on boot focuses on cluster-maintenance and asks the reader to isolate the key signal in Linux. Boot-time systemd conditions are one-shot gatekeepers unless something explicitly retriggers the...LinuxIntermediate11 minProLINUX-1389An rsyslog queue drains normally and a single destination keeps duplicating...An rsyslog queue drains normally and a single destination keeps duplicating... focuses on incident-response and asks the reader to isolate the key signal in Linux. Logging duplicates often come from retry-plus-fallback control flow, not f...LinuxIntermediate11 minProLINUX-1328A boot sequence loses one local socketAfter a reboot, one local service path disappears even though the unit itself shows active and healthy.LinuxIntermediate12 minProLINUX-1380A deployment sync finishes cleanly and one application loses ACLsA deployment sync finishes cleanly and one application loses ACLs focuses on Deployment Governance and asks the reader to isolate the key signal in Linux. Rsync regressions can preserve bytes perfectly while destroying the metadata your app ac...LinuxIntermediate12 minProLINUX-1333A package install completes and a service still starts with missing modulesA new module or runtime is installed and a service launched by systemd cannot see it even though the command works interactively.LinuxIntermediate12 minProLINUX-1357A package reinstall restores the binary and SELinux still blocks executionA recovery action reinstalls a package and later the service still fails even though the required binary now exists again.LinuxIntermediate12 minProLINUX-1335A root filesystem cleanup frees space and journald still refuses new logsAfter an inode or disk pressure incident, system logs partly recover but one class of user service logs never returns.LinuxIntermediate12 minProLINUX-1381A rootless Podman service survives package updates and failsA rootless Podman service survives package updates and fails focuses on Runner Hygiene and asks the reader to isolate the key signal in Linux. Rootless runtimes depend on user service policy as much as on package installation.LinuxIntermediate12 minProLINUX-1359A scheduled rsnapshot run works manually and fails on timerA remote backup job works on manual retry and fails consistently during boot-triggered or scheduled runs.LinuxIntermediate12 minProLINUX-1355A sudo rule works locally and fails through a bastionA host update passes basic tests and later operators notice sudo MFA behaves differently only when entering through a jump host.LinuxIntermediate12 minProLINUX-1365A sudoers include works for direct users and fails for bastion usersA host update passes basic access tests and later operators discover that bastion-based sudo no longer enforces MFA consistently.LinuxIntermediate12 minProLINUX-1369A systemd mount waits on network-online.target and still failsA remote filesystem works after manual retry and fails consistently on boot or timer-triggered execution.LinuxIntermediate12 minPro