New answers tagged su
setuid: (set user ID upon execution) is a Unix/Linux access rights flag that allow users to run an executable with the permissions of the executable's owner. It is needed for tasks that require higher privileges than those which common users have, such as changing their login password. suid: (saved user ID) is used when a program running with elevated ...
"set user ID" is an important permission feature. sudo and su (and many other programs including mount) need this feature to work; some programs work partly without this feature (like mount), others (like sudo and su) do not work at all. This feature is related to files. Files exist in file systems only. nosuid disables this feature for all files in a file ...
XAUTHORITY for me was set as a file that no longer existed: $ echo $XAUTHORITY /tmp/xauth-1000-_0 So I did unset XAUTHORITY and was then able to connect to my app as root using kdesudo (in this case kdesudo bleachbit)
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