Note: The following configuration is only to be used within a trusted network only, as it is not secure Requisites: Linux host alpha (our example) with X11 environment (XServer) Linux host bravo (our example) with LightDM installed (XClient) Objectives: Remotely connect to LightDM on Linux XClient from XServer Disable XClient display (optional) Edit /etc/lightdm/lightdm.conf on the XClient (bravo) and add the following to the appropriate sections: [LightDM] start-default-seat=false [SeatDefaults] xserver-allow-tcp=true [XDMCPServer] enabled=true On host bravo restart the lightdm service, by running either: service lightdm restart or invoke-rc.d lightdm restart or any other way that your distro provides to restart a service On host alpha run X :1 -query bravo and you should get a LightDM graphical login screen for bravo