Mission 66

Nano incident timeline

Write a timeline and compare it with SSH journal entries.

Nano and editing
9 minutes Admin Lesson 66 of 360
nanojournalctlcat
Lesson 66 of 360 0/360 lessons 0/17 missions Nano and editing · 9 minutes
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learner@clairos:/home/learner $ Unix ops lab: type a command, press Enter
Instructions 9 minutes

Click any instruction for the command details, the why, and the common mistake to avoid.

Edit timeline

Run nano lab/timeline.txt.

nano lab/timeline.txt
Read SSH journal

Run journalctl -u ssh.

journalctl -u ssh
Read timeline

Run cat lab/timeline.txt.

cat lab/timeline.txt
Lesson support

What to notice while you play.

Objective

Create an incident timeline note.

Hint

Read the SSH journal after saving your timeline.

Why it matters

Incident reviews depend on ordered events.

Common mistakes
  • Writing vague notes.
  • Skipping the source log after writing the timeline.
Reference

Commands in this lesson.

nano <file>

Open a simulated nano editor.

cat <file>

Print text file contents.

journalctl -u <service>

Read simulated service journal entries.