I am a newbie to Moodle. I am trying to use BigBlueButton plugin on my Moodle site for web conferencing. So far i understand should not use the BigBlueButton test server and I need to host BigBlueButton on my own server. I have an EC2 for moodle. Can i host Moodle and BigBlueButton together on my only one EC2? Or if i host BigBlueButton on a dedicated server, can i access it from multiple Moodle site?