[CentOS] non-privaledged reboot ???

René Standfest centos at standfest.net
Sun Jul 8 20:40:02 UTC 2007

Scott Ehrlich schrieb am 08.07.2007 21:01:

> On Sun, 8 Jul 2007, René Standfest wrote:
>> Matt Shields schrieb am 08.07.2007 14:32:
>>> On 7/8/07, Ignacio Vazquez-Abrams <ivazqueznet at gmail.com> wrote:
>>>> On Sat, 2007-07-07 at 22:51 -0700, Robert - eLists wrote:
>>>>> Greetings
>>>>> On centos 5, if I ssh in as a regular non-superuser account and go to the
>>>>> sbin dir to issue a reboot command, it wont do it as says you must be
>>>>> superuser
>>>>> If you are on the console logged in as a non-superuser account and do the
>>>>> same thing, it will reboot.
>>>>> Is this a feature, or a bug?
>>>> If you're at the console you can usually just push the reset or power
>>>> button *anyways*, so it's a non-bug. I believe you can edit the
>>>> appropriate entries in /etc/pam.d if you really want to change this.
>>> Not necessarily true.  Lots of people use remote KVM's :)  So just
>>> because someone has access to the console does not mean they have
>>> physical access to the server.
>> That's true, but you can push CRTL-ALT-DEL and the computer reboots, even if
>> you're not logged in.
> Can't C-A-D be filesystem trapped to prevent the system from rebooting 
> with that key combo?   If so, that could negate that option if the fs is 
> configued as such.

You can change the behavior ov C-A-D in /etc/inittab. I changed it to
	ca::crtlaltdel:/bin/echo "Nix da!"
to prevent a reboot if I push the keycombo faulty.

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