Mission 11

Log triage

Inspect access, error, auth, and service logs in a cautious order.

Text and logs
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Ops lab terminal Browser only
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learner@clairos:/home/learner $ Unix ops lab: type a command, press Enter
Lesson support

What to notice while you play.

Objective

Compare app, service, and auth evidence.

Hint

Tail nginx access, then read the fake nginx journal.

Why it matters

Incident triage is evidence gathering before action.

Common mistakes
  • Restarting a service before reading logs.
  • Only checking one log source.
Reference

Commands in this lesson.

grep [-i] <text> <file>

Find literal text inside a file.

journalctl -u <service>

Read fake service journal entries.