Any user can restart

[NoOp]

On 06/18/2008 05:56 PM, Catalin David wrote:
> Hello!
> 
> Well, my problem is not so easy to understand... but i'll give it a try.
> 
> Imagine this: you work on something, you don't save, take a break, you 
> lock my screen, someone else comes to the computer, tries to login, 
> can't guess your password and decides to switch user, this taking him to 
> the login screen. There is a magic button on the low-left corner 
> allowing the user to restart, shutdown without any need of password or 
> so. You lose all your work.
> 
> Is there any way to disable this functionality (forcing a user to login) 
> or to run it with gksudo instead (i mean to ask for root password)?
> 
> Thank you,
> Catalin
> 

You might have a look at Pessulus which is a lock-down editor:

http://library.gnome.org/admin/system-admin-guide/2.22/lockdown.html.en

sudo apt-get install pessulus

It is used for setting up 'kiosk' systems. Also see:
https://wiki.ubuntu.com/kioskGnome

Note: for kubuntu there is kiosktool. See:
http://caffeinefueled.com/posts/building-an-internet-kiosk-with-ubuntu
for an example.

Alternative (in your case) is to use a password enabled screensaver like
xlockmore.