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Lock X11 display until password is entered -- GL version

WARNING: This package has security holes that can be exploited when NIS is enabled. So do not install it if you use NIS.

xlock locks the X server till the user enters his/her password at the keyboard. While xlock is running, all new server connections are refused. The screen saver is disabled. The mouse cursor is turned off. The screen is blanked and a changing pattern is put on the screen. If a key or a mouse button is pressed then the user is prompted for the password of the user who started xlock. xlockmore extends the standard xlock program by adding many more modes that are highly configurable.

Note that under XFree86, the X11 implementation for Linux, Control- Alt-Backspace will defeat the locking mechanism and return your console back unless you put "DontZap" in your XF86Config file. 'xdm' returns to the login prompt. Control-Alt-F1 (among others) will defeat locking mechanism with virtual terminals, so make sure that you are not logged onto any virtual consoles.

This version is built with additional OpenGL/MesaGL and XPM modes. The companion package xlockmore does not contain them.

Package version:4.12-4.1


xlockmore for Debian

xlockmore-gl and NIS

Since xlockmore-gl is linked with Mesa and NIS requires us to be setuid root,
this means that currently xlockmore-gl must not be used with NIS.  xlockmore
still works though.

Date: Tue, 24 Mar 1998 14:54:03 +0100
From: bjorn smedman <bs@ODEN.SE>
Subject: buffer overflow with a twist



xlockmore-4.12: the maintained version of xlock
see docs/Revisions for more version stuff
see docs/TODO for stuff to do :)

I have significantly less time to maintain this but I try.
If someone has some free time and wants to take over... let me know.
(Help is always appreciated too ;) ).

Primary site:
Secondary site:


XLOCK(1)                                                    XLOCK(1)

       xlock  -  Locks  the  local  X  display  until  a password is

       xlock [ -help ] [ -version ] [ -resources ] [  -display  dis‐
       playname  ]  [  -visual visualname ] [ -name resourcename ] [
       -mode modename ] [ -delay usecs  ]  [  -batchcount  num  ]  [
       -count num 


xlockmore (4.12-4.1) stable; urgency=high

  * Non-maintainer upload by security team
  * Fix buffer


General problems:

  o It would be nice to have an option -idletime time.  Where xlock would


This is Debian/GNU Linux's prepackaged version of the 'xlock' utility.
'xlock' locks the X server un

Browse inside xlockmore-gl_4.12-4.1_i386.deb

         [DIR]DEBIAN/ (5)  65535+ mirrors
         [DIR]usr/ (3)  65535+ mirrors

Download xlockmore-gl_4.12-4.1_i386.deb

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