Skip to main content

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-003Medium
Browser LabLD-LINUX-LAB-003Medium18 min

Troubleshoot a Linux Server

A Jisr application server is slow and its nightly job did not run. Use performance tools, systemd and logs to localize the bottleneck and the failed job — evidence, not guesses.

What you will be able to do

  • Localize a resource bottleneck from tool output.
  • Find why a scheduled job failed from its log.
Log AnalysisIncident Triage

Sign in to start this lab.

Sign in