Run ss -tulpn.
ss -tulpn
Mission 121
Nano network note
Pair socket inspection with an operator note.
Nano and editingssnanocat
Lesson 121 of 360
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Nano and editing · 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 nano lab/network-review.txt.
nano lab/network-review.txt
Run cat lab/network-review.txt.
cat lab/network-review.txt
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Lesson support
What to notice while you play.
Pair socket inspection with an operator note.
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.
nano <file>
Open a simulated nano editor.
cat <file>
Print text file contents.
ss|ip
Inspect simulated sockets and addresses.
ssh|scp|ssh-keygen
Practice SSH inspection and dry-run transfer shapes without network access.