Run grep denied /var/log/auth.log.
grep denied /var/log/auth.log
Mission 94
Incident note
Write a short lab incident note from log evidence.
Security administrationgrepechocat
Lesson 94 of 360
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Security administration · 8 minutes
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learner@clairos:/home/learner $
Unix ops lab: type a command, press Enter
Instructions
8 minutes
Click any instruction for the command details, the why, and the common mistake to avoid.
Run echo incident-reviewed > incident-review.txt.
echo incident-reviewed > incident-review.txt
Run cat incident-review.txt.
cat incident-review.txt
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Lesson support
What to notice while you play.
Turn denied-login evidence into a short note.
Search auth.log before writing incident-review.txt.
Incident review needs both source evidence and human summary.
- Writing conclusions without evidence.
- Putting secrets into notes.
Reference
Commands in this lesson.
echo <text>
Print text or write lab notes with >.
cat <file>
Print text file contents.
grep [-i] <text> <file>
Find literal text inside a file.