Run ls -l /etc/ssh.
ls -l /etc/ssh
Mission 18
Permission review
Review sensitive training SSH and web files with long listings and metadata.
Permissions and usersls -lstatgrep
Lesson 18 of 360
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Permissions and users · 9 minutes
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learner@clairos:/home/learner $
Unix ops lab: type a command, press Enter
Instructions
9 minutes
Click any instruction for the command details, the why, and the common mistake to avoid.
Run stat /etc/ssh/sshd_config.
stat /etc/ssh/sshd_config
Run grep PermitRootLogin /etc/ssh/sshd_config.
grep PermitRootLogin /etc/ssh/sshd_config
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Lesson support
What to notice while you play.
Inspect sensitive file modes without modifying them.
Compare /etc/ssh/sshd_config and /srv/www/index.html.
Reviews find risky permissions before they become incidents.
- Changing sensitive files as a first step.
- Ignoring owner/group labels.
Reference
Commands in this lesson.
ls [-la] [path]
List lab files and folders.
grep [-i] <text> <file>
Find literal text inside a file.
stat <path>
Show lab file details.
lsof
Show simulated files and sockets opened by services.