How do I setup VNC based on xinetd with XDMCP for GDM? RHEL7

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I have followed the instructions given in the Knowledgebase Solutions at https://access.redhat.com/node/2516 without success. When I ssh into the server and execute:

$ vncviewer localhost:5952 &

the display hangs with this message:

Fri Jan 29 15:26:21 2016 
CConn: connected to host localhost port 5952 
CConn: End of stream

but over in /var/log/messages

Jan 29 15:30:12 cs xinetd[1812]: START: vnc pid=15987 from=::1 
Jan 29 15:30:12 cs kernel: Xvnc[15987]: segfault at 0 ip 0000000000527267 sp 00007ffe931dfac0 error 4 in Xvnc[400000+238000] 
Jan 29 15:30:12 cs xinetd[1812]: EXIT: vnc signal=11 pid=15987 duration=0(sec)

Having Xvnc dropping core is an unexpected result. Any ideas?

PS

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