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#1 (**permalink**) 02-21-2008, 07:34 AM

I am an intermidiate Linux user, and I have had some problems limiting
the usage of the 'su' command. I recently changed the name of the one
user account that is in the wheel group (which I know is one way to
limit who can the su to root), and while the user's new name stayed in
the wheel group, I was unable to su until I changed the name back.

Anyway, my question is, what are the different ways to limit who can su
to root? I know that gentoo comes configured so that only users of
wheel can su. How else can this be controlled?

Thanks in advance,
Dan

#2 (**permalink**) 02-21-2008, 07:34 AM

newcastle enlightened us with:
> I recently changed the name of the one user account that is in the
> wheel group (which I know is one way to limit who can the su to root),
> and while the user's new name stayed in the wheel group, I was unable
> to su until I changed the name back.

Why are you changing a username? You don't need to do that to put
someone in a group.

> Anyway, my question is, what are the different ways to limit who can
> su to root?

See /etc/pam.d/su

Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?

#3 (**permalink**) 02-21-2008, 07:34 AM

Sybren Stuvel wrote:

> newcastle enlightened us with:
>
>>I recently changed the name of the one user account that is in the
>>wheel group (which I know is one way to limit who can the su to root),
>>and while the user's new name stayed in the wheel group, I was unable
>>to su until I changed the name back.
>
>
> Why are you changing a username? You don't need to do that to put
> someone in a group.

I changed the username for other reasons.

>
>
>>Anyway, my question is, what are the different ways to limit who can
>>su to root?
>
>
> See /etc/pam.d/su

Thank you.

Dan

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Limiting su