Mission 269

SSH dry-run review

Resolve SSH config and key context without connecting.

Networking
8 minutes Admin Lesson 269 of 360
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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.

Resolve lab SSH config

Run ssh -G lab.

ssh -G lab
Read SSH config

Run cat ~/.ssh/config.

cat ~/.ssh/config
Inspect known hosts

Run stat ~/.ssh/known_hosts.

stat ~/.ssh/known_hosts
Lesson support

What to notice while you play.

Objective

Resolve SSH config and key context without connecting.

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.

cat <file>

Print text file contents.

stat <path>

Show lab file details.

ssh|scp|ssh-keygen

Practice SSH inspection and dry-run transfer shapes without network access.