Mission 296

Capstone disk pressure

Investigate disk pressure and log retention evidence.

Capstone labs
8 minutes Capstone Lesson 296 of 360
dfdulogrotatefind
Lesson 296 of 360 0/360 lessons 0/17 missions Capstone labs · 8 minutes
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Ops lab terminal Training lab
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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.

Check disk

Run df -h.

df -h
Size logs

Run du -sh /var/log.

du -sh /var/log
Dry-run rotation

Run logrotate -d /etc/logrotate.d/nginx.

logrotate -d /etc/logrotate.d/nginx
Find rotated logs

Run find /var/log -name .1.

find /var/log -name .1
Lesson support

What to notice while you play.

Objective

Investigate disk pressure and log retention evidence.

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.

find [path] [-name text]

Search lab filesystem paths.

logrotate -d <config>

Dry-run a simulated log rotation config.

df|du|free|uptime

Inspect training resource and system health.