changing port 5080 to 80 in OM 3.0.3

[Getachew Areda]

Is it possible to assign the port no. 80 to OpenMeetings althoughapache2 
webserver runs and uses port 80?Is it enough to edit only the files 
$RED5_HOME/conf/red5.properties and 
$RED5_HOME/webapps/openmeetings/public/config.xmland change http.port and  
red5httpport to 80.
thank youGetachew