> 1. The cracker must then guess a valid username in order to log
> in. Not only a valid user, but one who is in the wheel group and has access
> to becoming root (i.e. with permissions to use /bin/su).
I have never sen a mchine where you have to be in the wheel group to use su. I assume you can set it up that way.
#chmod 4750 /bin/su
Now, add the right users to wheel.
-- Rodolfo J. Paiz rpaiz@xxxxxxxxxxxxxx