I was wondering, is it possible to change the port for the following Arma 3 server in your database?

The port is currently set to 2322 but should be 2602.

Server name: Celtic Alliance - RECRUITING
IP address: 109.236.85.30
Port: 2322 (Please change this to 2602)
Query Port: 2603

There is no feature to change the join port of a page. To change the join port, you need to add your new server on here: http://www.gametracker.com/servers/

Since the query ports appear to conflict (you cannot use the same query port per IP on multiple pages), you would either need to:
1. Change the query port of the current page to something else. You can only change the query port when the server is down on the "manage" page. You would need to take the server offline, then change the query port to a server running on a different query port.
2. Delete the current page

Thank you for that info Burn.

It should now be ok