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Old 11-19-2001, 11:30 AM   #1
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Registered: May 2001
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Stopping the Ctrl-Alt-BackSpace

I am wondering how I can stop remote X terminal users from killing X using the ctrl-alt-bkspace. I have stopped them from ctrl-alt-deleteing and restarting their local machine however they can still still kill X and get to a local logon screen. I want them to get the Login screen but should they enter a bad user/pass or wait more than say 15 seconds, X should restart and begin a new X login.

Any ideas? Can I use the same inittab command I used the catch the ctrl-alt-del to catch the ctrl-alt-bkspace? ex.

ca::ctraltdel:/sbin/shutdown -t3 -r now

ca:ctrlaltdel:/bin/echo "Please Contact your SysAdmin should you need to restart"

Any clues??
Thank you
Old 11-19-2001, 01:22 PM   #2
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Maybe and/or

Last edited by unSpawn; 11-19-2001 at 01:23 PM.
Old 08-14-2004, 03:40 AM   #3
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Registered: Aug 2004
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dsiable ctrl+alt+backspc,ctrl+alt+f1

I have read that 2 thread, but i still confuse
i want to disable ctra+alt+backspace and ctrl+alt+f1...f5
can i ask you about that?Because i still new in linux, i don't understand your advise.

you said that by adding Dontzap to XFconfig, can you describe it clearly,what is dontzap?or enter +80 chars in password box, where is the passwordbox.

the other thread you said about modify a keymap and edit out the F keys and backspace. Where i can find and modify it?what is a keymap file?

Sorry if my questions seems silly,but i really doesn't get it. thank you very much
Old 08-14-2004, 06:43 AM   #4
Registered: Mar 2004
Location: York, UK
Distribution: Ubuntu
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Below 'Section "ServerFlags"' you just need a line "DontZap". This disables killing X by using ctrl+alt+backsp.

>edit out the F keys and backspace
I wouldn't recommend disabling backspace! :-)

To disable ctrl+alt+f* in X will involve creating an appropriate file to use with xmodmap. I have used xkeycaps, a graphical keymap editor, for this.

So the file reads:

keycode 0x43 = F2
keycode 0x44 = F3

(Note that normally these lines would be something like "keycode 0x44 = F2 XF86_Switch_VT_2")

and so on.

To load it, you use "xmodmap /whereever/" or so. Forcing this to happen for each user when they login depends on how your system is otherwise set up.


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