Re: Possible flaw in XFree?

From: Valdis.Kletnieks@vt.edu
Date: 06/28/02 

To: "William N. Zanatta" <william@veritel.com.br>
From: Valdis.Kletnieks@vt.edu
Date: Fri, 28 Jun 2002 12:48:21 -0400

On Thu, 27 Jun 2002 16:06:55 -0300, "William N. Zanatta" <william@veritel.com.br> said:

> 5. Then, 'ctrl-alt-backspace' and voila... X is down and my console
> is there, opened for me.

Working as designed.

XFree is just following the X Consortium here - X servers have used
control-alt-backspace as a "shutdown now" hotkey at least as far back
as X11.1 or maybe even X10.4, 15 years ago.

If this is a problem in your environment:

1) dont use 'startx', but use 'gdm' or something to manage logins.
This way, when the X server exits, you go back to the login screen.

2) 'man 5 XF86Config' and read this in the 'Serverflags section':

      Option "DontZap" "boolean"
              This disallows the use of the Ctrl+Alt+Backspace
              sequence. That sequence is normally used to termi-
              nate the X server. When this option is enabled,
              that key sequence has no special meaning and is
              passed to clients. Default: off.

Hope this helps.. 

-- 
				Valdis Kletnieks
				Computer Systems Senior Engineer
				Virginia Tech

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