Setting to permit user to turn off computer from session manager

[Benedikt Meurer]

Joel Gomberg wrote:
> When I used FC2 & FC3, I could shut down my computer from the xfce4 exit 
> dialog by selecting the appropriate option and entering my user 
> password.  With FC4, I receive an error message that "the system 
> administrator disallows shutting down the computer with your user 
> account."  Does anyone know how to change this setting?  It's completely 
> useless from a security standpoint, since I can quit the current xfce 
> session without providing any password and can then shutdown from the 
> graphical login screen without providing any password.

You need to add the appropriate line to your sudoers file. See

http://www.loculus.nl/xfce/documentation/docs-4.2/xfce4-session.html#xfsm-shutdown

Benedikt