Originally posted by: alethad
If they aren't needing to install a piece of their app on your AIX then give them a port higher than you normal ranges. Like port# 10000 or 20000 or whatever you deem a safe port#. Then you won't have to worry about them stepping on one of your apps.
I have a freeware app that I run on my AIX that needed a high port number and all I had to do for that was add a line to my /etc/services. It didn't have to LISTEN. Can't tell if this is the same case for you but could be. Not sure if you'll need to edit that file but I would just for documentation sake if nothing else.
I'm sure someone else might have a better way to handle it.
Good luck.