root@max-laptop:~# gdm3 
<7>Enabling debugging
<7>Changing user:group to Debian-gdm:Debian-gdm
<7>Successfully connected to D-Bus
<7>GdmManager: GDM starting to manage displays
<7>GdmManager: Accepting XDMCP connections...
<7>GdmXdmcpDisplayFactory: Start up on host max-laptop, port 177
<7>GdmXdmcpDisplayFactory: addrinfo family=inet6 type=datagram proto=UDP flags=passive 
<7>GdmXdmcpDisplayFactory: Attempting to bind to host :: port 177
<7>GdmXdmcpDisplayFactory: Starting to listen on XDMCP port
