Export selfsigned cert from openfire 4.0.1

Hi I am new to this, we use openfire 4.0.1 with Bria 3 and now Bria 4.3.1

Since we upgraded too Bria 4.3.1 XMPP is not working

it will only accept, the IP address and not DNS name.

In Bria 4.3.1 they added a new feature Verify TLS cert, Bria tell me that you need to export the self-signed cert from the sever and then import into the PC with Bria

is there a away too export the self-signed cert in Openfire