Technology / System Admin

This week: Linux File Permissions

by Michael Hess
This week: Linux File Permissions picture: A
Published on January 22, 2021

To maintain proper security, users should have exactly the level of access that they need to do their jobs — no more, no less. That's why knowing how to manage and maintain file permissions is an understated, but incredibly important, skill. Knowing when to chmod versus chown or use a uid or gid is all part of the job.

This week, we give you a crash course in Linux permissions, executables, and the fundamentals of uid and gid.

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Setuid and setgid are a way for users to run an executable with the permissions. Learn why they are so crucial and Linux admins can leverage them.

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