Start the Security Level Configuration Tool by selecting Main
Menu Button
(on the Panel) ( System Settings ( Security Level, or enter the command
system-config-securitylevel from a command terminal. Add the following text to the "Other Ports"
field (entries are separated by commas),
177:udp
2) Open and edit the GDM configuration file with a text editor.
Normally, this file is located at
. Search
/etc/X11/gdm/gdm.conf
for the following section,
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