To fix these errors, please make sure that your domain name was entered correctly and the DNS A/AAAA record(s) for that domain contain(s) the right IP address - Help - Let's Encrypt
Port definition not clear and different ports used · Issue #13943 · bigbluebutton/bigbluebutton · GitHub
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Using bbb-install.sh to install BigBlueButton 2.0 in about 15 minutes - YouTube
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