Linux Administration Bootcamp: Go from Beginner to Advanced - Special Permission Modes - Part 1

The video tutorial explains special permissions in Linux, focusing on setuid, setgid, and the sticky bit. It details how these permissions work, their security implications, and how to manage them using commands like chmod. Examples include the password, ping, and chsh commands for setuid, and the wall command for setgid. The tutorial also covers how to find files with these permissions and the risks associated with improper settings.

What does the setuid permission allow a file to do?

• Run with the permissions of the file owner

• Run with the permissions of the user executing it

• Run with no permissions

• Run with the permissions of the group owner

Why is the setuid permission used for the password command?

• To allow the password command to run without any permissions

• To prevent any user from changing their password

• To provide root privileges for modifying password files

• To allow any user to change any password

What is a potential risk of files with setuid root permissions?

• They can only be accessed by the root user

• They can be deleted by any user

• They can be used for privilege escalation attacks

• They can be executed without any permissions

How can you add the setuid permission to a file using chmod?

• chmod 6755

• chmod 4755

• chmod 2755

• chmod 0755

What does the find command with the perm option 4000 do?

• Finds files with no special permissions

• Finds files with sticky bit permissions

• Finds files with setuid permissions

• Finds files with setgid permissions

What does the setgid permission do for a file?

• Allows the file to run with root privileges

• Allows the file to run with the user's group privileges

• Allows the file to run with the file's group privileges

• Allows the file to run with no group privileges

How does the setgid permission affect directories?

• It changes the group ID of new files to the directory's group ID

• It allows any user to delete files in the directory

• It changes the owner of all files in the directory

• It prevents any new files from being created