what port does XDMCP use? XDMCP if you want to know what port XDMCP uses we will tell you...

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if you need to allow XDMCP traffic to your server, you will need to open the XDMCP port to allow XDMCP traffic to your system

question: What is the default port used by the XDMCP (XDMCP )?

the answer is: port 177

examples of server: DXM,KDM,GDM

TCP/UPD: UDP