[sudo-users] preventing user "bob" from executing sudo at all

[Felipe Alvarez]

Hi list
I want to prevent 'bob' from using sudo entirely. What should I type
into /etc/sudoers (via visudo)? I want 'bob' to never gain root
privileges, never use 'su', and never run anything as root user.
Perhaps not related to sudo but ... If possible, I'd also like to
prevent 'bob' from running mount, passwd, or any setUID program.


Felipe