Mission 166

Network log grep

Search logs for link and access clues.

Networking
8 minutes Advanced Lesson 166 of 360
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Lesson 166 of 360 0/360 lessons 0/17 missions Networking · 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.

Find interface log

Run grep eth0 /var/log/kern.log.

grep eth0 /var/log/kern.log
Find GET requests

Run grep GET /var/log/nginx-access.log.

grep GET /var/log/nginx-access.log
Tail access log

Run tail -n 2 /var/log/nginx-access.log.

tail -n 2 /var/log/nginx-access.log
Lesson support

What to notice while you play.

Objective

Search logs for link and access clues.

Hint

Run the commands in order and compare the outputs.

Why it matters

Junior operators build confidence by gathering evidence before changing systems.

Common mistakes
  • Skipping the inspection step.
  • Assuming one command tells the whole story.
Reference

Commands in this lesson.

grep [-i] <text> <file>

Find literal text inside a file.