How to change or disable the "Ctrl+Alt+Del" behavior in GNOME Desktop on Red Hat Enterprise Linux system?

Solution Verified - Updated -

Issue

  • The default Ctrl+Alt+Del dialog on Gnome Desktop is "Power Off/Shutdown" dialog. User want to replace behavior or remove the keybinding at all.
  • We want to disable Alt+Ctrl+Del behaviour of getting Hibernate/Reboot/Shutdown dialog window.
  • I dont want to disable the (Alt+Ctrl+Del) key combination through graphical mode instead I need to disable this option through command mode. Please suggest how we can implement this through command mode.

Environment

  • Red Hat Enterprise Linux 5 and 6
  • GNOME Desktop Environment

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