Add the user to the
gpasswd wheel -a username
I use gpasswd because not all versions of
usermod have an easy way to add the user to a group without changing all the users’ groups. However, on any recent Fedora,
usermod username -a -G wheel should have the same effect. You could also use the
system-config-users GUI, of course.
If you are using Fedora 14 or earlier, use
visudo to edit the sudoers file, removing the
# from this line:
%wheel ALL=(ALL) ALL
This is the default in the sudoers file on Fedora 15 and newer, so adding the user to
wheel is all you need to do.
See also this question and answer over on Server Fault for information on granting sudo-like “auth as self” behavior to wheel group members for graphical apps which use consolehelper or PackageKit