Run ip addr.
ip addr
Mission 170
Networking checkpoint
Tie addresses, listeners, firewall, and SSH config together.
Networkingipssufwssh
Lesson 170 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 ss -tulpn.
ss -tulpn
Run ufw status verbose.
ufw status verbose
Run ssh -G lab.
ssh -G lab
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Lesson support
What to notice while you play.
Tie addresses, listeners, firewall, and SSH config together.
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.
ss|ip
Inspect simulated sockets and addresses.
ssh|scp|ssh-keygen
Practice SSH inspection and dry-run transfer shapes without network access.
ufw status
Inspect simulated firewall rules.