Questions !

[Wadiyar, Umakant]

Hi Folks , 

I would like to start using sudo , but I am looking for answers to few
questions before I start implementing it .

I have given the following permissions to a user 

user     ALL = (ALL)  !SU, !SHELL 

Question 1 >   How can I restrict a user from gaining access to /etc/sudoers
file by doing visudo ?

Question 2 > How can I restrict a smart user from deleting the sudo logs   .



Thanks in advance 


Umakant Wadiyar