When I do a 'netstat -nl' I find UDP port 686 open. I do an 'lsof | grep UDP' and I find that xinetd has this port open. I look in /etc/services and find nothing under port 686. 'grep 686 /etc/xinetd.d/*' turns up nothing. Why is xinetd binding to UDP port 686 and how do I disable that if need be?