In addition to the usual Linux permissions I have described in a previous article, there is also the possibility for us to set up special permissions for files and folders with one bit.
These special permissions are:
Set User ID (SUID)
SUID option is used for executable files. It tells the Linux system to run the program with the permissions of the owner (owner), not the one who executes them.
For example, if a file is owned by root and has the SUID bit set, the program will run with root privileges and can therefore access any file on your computer – this… read more +