sorry for taking time to get back. yeah, as you said, the main config file is /etc/X11/xorg.conf. it has config for input & output devices.but in RHEL3, under the file /etc/X11/XF86Config, we have some options like this:
"DontVTSwitch" "on" ---- which disables switching between GUI to CUI mode.
"DontZap" "on" ---- disable ctrl + alt + backspace sequence.
my question is does RHEL4 also has got some options like this? if yes, where?