Thank you for all your collaboration.
I m looking forward to use openmeetings with all futures.
I have a problem when i change port of RTMPT and HTTP to 443 and 80 within a two files : $RED5_HOME/conf/red5.properties, $RED5_HOME/webapps/openmeetings/config.xml.
The problem is when i want to access to the openmeeting with a local ip-address doesn't work (http://192.168.2.100/openmeetings/), but with localhot work nice (http://localhost/openmeetings/)
Thank you very much for your help.