Run grep eth0 /var/log/kern.log.
grep eth0 /var/log/kern.log
Mission 272
Network incident logs
Search kernel and access logs for network clues.
Networkinggreptail
Lesson 272 of 360
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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.
Run grep GET /var/log/nginx-access.log.
grep GET /var/log/nginx-access.log
Run tail -n 2 /var/log/nginx-access.log.1.
tail -n 2 /var/log/nginx-access.log.1
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Lesson support
What to notice while you play.
Search kernel and access logs for network clues.
Run the commands in order and compare the outputs.
Junior operators build confidence by gathering evidence before changing systems.
- 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.