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Preview build: sign-in and grading run on the server. MFA is not enabled, and storage is in server memory so it does not survive a restart.

LearnDefend
Browser LabLD-LINUX-LAB-002Medium
Browser LabLD-LINUX-LAB-002Medium16 min

Services, Networking & Logs

The web service on a Jisr server is down. Use the service state, the listening sockets and the journal to find the cause — one process is holding the port.

What you will be able to do

  • Read systemctl status and journalctl to find a failure cause.
  • Interpret ss to see what holds a port.
Log AnalysisNetwork AnalysisIncident Triage

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