Finding UDP Port Usage...

From: Michael (michaeln_at_twentyten.org)
Date: 10/27/03 

Date: Mon, 27 Oct 2003 07:55:15 -0800

I have a problem here.... I have this custom program that listens on
21050/UDP. The problem is that now and then, the program will say that that
port is already bound and that the service can't bind to it. I tried
looking for an open file related to it, but I can find nothing.

lsof -ni UDP:21050

I also tried binding another program (BIND) to that port and that program
also comes back with the same error. How do I find out what's "hanging on"
to this port? How do I fix it without rebooting the server?

Michael

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