Run uptime.
uptime
Mission 181
Triage baseline
Start troubleshooting with system, service, and capacity facts.
Troubleshootinguptimedfsystemctl
Lesson 181 of 360
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Troubleshooting · 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 df -h.
df -h
Run systemctl status nginx.
systemctl status nginx
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Lesson support
What to notice while you play.
Start troubleshooting with system, service, and capacity facts.
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.
systemctl status <service>
Inspect simulated service status.
df|du|free|uptime
Inspect training resource and system health.