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Ironically the "wheel" construct is alive and well via sudo. The default /etc/sudoers for rhel/centos/fedora systems has a line that allows anyone in the wheel group the ability to run anything they want through sudo, its just commented out. Delete one character and voila, you can give and retract root privs via adding and removing users from the wheel group.


I noticed recently that my Debian now comes with a "sudo" group that is effectively the same thing.


That's because sudo is a BSD tool so it's always worked with the wheel group.




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