Cyber Security Interview Questions and Answers › Cyber Security
What do chmod 755, 644 and 400 mean?
Permissions decide who can read (r=4), write (w=2) and run (x=1) a file. 3 digits = owner, group, others. Wrong permissions leak files or let others change them.
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Permissions decide who can read (r=4), write (w=2) and run (x=1) a file. 3 digits = owner, group, others. Wrong permissions leak files or let others change them.
Learn more in the lesson: 5.5 Permissions: chmod and chown