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XCCDF
Guide to the Secure Configuration of Oracle Linux 8
System Settings
Installing and Maintaining Software
GNOME Desktop Environment
Configure GNOME Login Screen
Disable XDMCP in GDM
Disable XDMCP in GDM
An XCCDF Rule
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Disable XDMCP in GDM
High Severity
XDMCP is an unencrypted protocol, and therefore, presents a security risk, see e.g.
XDMCP Gnome docs
. To disable XDMCP support in Gnome, set
Enable
to
false
under the
[xdmcp]
configuration section in
/etc/gdm/custom.conf
. For example:
[xdmcp] Enable=false