How to make bigbluebutton work on multiple domains?

Question

BigBlueButton

Good afternoon, the bigbluebutton webinar service is configured and running on my server.
The problem is that the server itself is accessible by the server's IP address xx.xx.xx.xx
But two independent domains are bound to this IP. In order for BBB to work on the domain.ru request, you need to do
bbb-conf --set-ip domain.ru
But how to make it work on the second domain that is bound to the same server?
Changing the settings all the time will not work, as they can hold meetings from two domains at the same time.