Forward ports and config Bigbluebutton

forward three ports to the the internal IP address of the BigBlueButton server. These ports are 80 (HTTP), 9123 (Desktop Sharing), and 1935 (RTMP).

sudo bbb-conf --setip external.host.org

Internally, BigBlueButton must be able to call external.host.org to make API requests. In this example, if the internal BigBlueButton server is at 192.168.10.198, add the following line to /etc/hosts (you’ll need to edit this file as root user).

sudo vi /etc/hosts

insert line

192.168.10.198 external.host.org

…

Ref: http://code.google.com/p/bigbluebutton/wiki/FAQ