text: how to lock the system in linux? helo,i need to activate locking of he system when i'm not at the desk.. how do i go about doin this in linux!! in kde, you can add a lock applet to kicker, or simply choose to lock from the kmenu. i'd presume a similar applet exists for gnome.  xscreensaver usually handles locking, so an alternative would be to turn on the screen saver password, and set a mouse-activation corner for your saver.