Ubuntu Firewall config

Good Day,

May i know if there is complete list of ports need to open when I enable the firewall for ubuntu 18.04
and any additional config need to add if i enable the firewall. I successfully install jitsi using official quick install…

I’m thinking to open only is port 80, 443, 10000, 20000 if there is any need to add for complete and working jitsi please advise.

requesting for kind advise/assistance thank you

thank you