[CentOS] Disabling the shutdown buttons in graphical login screen of CentOS 6.3

[SilverTip257]

On Tue, Feb 12, 2013 at 10:12 AM, Andrea*s Jackie Klaura <
andreas.klaura at univie.ac.at> wrote:

> On 02/12/2013 02:51 PM, Andrea*s Jackie Klaura wrote:
> [snip]
> >
> > The problem:
> > * I have to somehow deactivate the "Suspend", "Restart" and "Shutdown"
> > options in the login screen.
> > * This has to be done in CLI mode, as I have to change this on many
> machines
> >
> > Tried out solutions:
> > * As far as I could figure out gdm-simple-greeter would be the programm
> > I'd have to tweak. But changing options in /etc/gdm/custom.conf does not
> > change anything (as if this file would be ignored).
> > * Another thing would be to set the
> > /apps/gdm/simple-greeter/disable_restart_buttons option to true through
> > gconftool-2. But this option also seems to be ignored. Several posts on
> > the web point to this being a bug which is fixed in RHEL but not CentOS.
> > * I also tried to limit access to all the poweroff, reboot and halt
> > commands through pam.d so that only root would be allowed to shutdown.
> > This did not work either.
> > * I even tried to rename the /sbin/reboot command (and therefore
> > deactivate all the different links pointing to it). Still clicking the
> > buttons still lead to a shutdown (although at some point it got stuck,
> > but the system was not reachable any more).
> >
> [snip]
>
> solved.
>
> sorry to have bothered you, but somehow setting the gconf key
> /apps/gdm/simple-greeter/disable_restart_buttons does work.
>
> as i looked over it once more with a colleague setting it as mandatory
> did work. i don't know what is different, because i was sure i did do
> that before. but well, so far it worked on several systems.
>
> so sorry to bother you all with that.
>

Thanks for sharing your solution.


>
> in any case someone else stumbles upon this problem, my actual solution
> now is rather simple:
>
> gconftool-2 --direct --config-source xml:readwrite:/etc/gconf \
> /gconf.xml.mandatory -t bool -s /apps/gdm/simple-greeter \
> /disable_restart_buttons true
>
>
Interesting.
Out of curiosity, I found [0] with the information you provided.

[0]
http://help.gnome.org/admin/gdm/stable/configuration.html.en#greeterconfiguration


>
> cheers,
> jackie
>
>
> --
> Andrea*s Jackie Klaura
> University of Vienna
> Institute of Theoretical Chemistry
> Waehringerstr. 17
> A-1090 Vienna, Austria
> tel: +43 (0)1 4277 52756
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>

-- 
---~~.~~---
Mike
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