Want to edit servername in Red5

when i was installing openfire for testing purposes i set the name of this box “openchat”. now everything is working perfectly but there is a problem with redfire plugin

when i send inivitition to another user my link showed up like openchat:7070 and that needs to be change. i want it to be changed to FQDN like this

chat.mycompany.com:7070

when i made the changes in DNS i can manage to connect the Sparkclient to the server but Red5 or redfire is still unable to generate correct link.

would you please tell me how can i change the server name example “openchat” to “chat.mycompany.com” with out reinstalling or re run the setup.

Best regards

MYK