Run stat ~/.ssh.
stat ~/.ssh
Mission 333
SSH mode matrix
Compare directory and key-file modes used by an SSH account.
Permissions and usersstatchmod
Lesson 333 of 360
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Permissions and users · 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 chmod 700 ~/.ssh.
chmod 700 ~/.ssh
Run chmod 600 ~/.ssh/authorized_keys.
chmod 600 ~/.ssh/authorized_keys
Run stat ~/.ssh/authorized_keys.
stat ~/.ssh/authorized_keys
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Lesson support
What to notice while you play.
Build repeatable confidence with keeping SSH directories and key files appropriately restricted.
Start with stat ~/.ssh, inspect the result, then continue in order.
Keeping SSH directories and key files appropriately restricted helps operators explain what they know before they change anything.
- Skipping the output that proves keeping SSH directories and key files appropriately restricted.
- Changing several things before recording a baseline.
Reference
Commands in this lesson.
chmod <mode> <path>
Change a simulated numeric permission mode.
stat <path>
Show lab file details.