Run lsof -i.
lsof -i
Mission 241
Open file triage
Map open sockets and processes to services.
Server operationslsofpgrepsystemctl
Lesson 241 of 360
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Server operations · 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 pgrep nginx.
pgrep nginx
Run systemctl status nginx.
systemctl status nginx
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Lesson support
What to notice while you play.
Map open sockets and processes to services.
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.
lsof
Show simulated files and sockets opened by services.
systemctl status <service>
Inspect simulated service status.