Just to understand:
The passwords in /etc/jitsi/jicofo/config and /etc/jitsi/jicofo/sip-communicator.properties have to be the same on the meet server and on the additional videobridges?
JICOFO_SECRET=sdfsf and JICOFO_AUTH_PASSWORD in /etc/jitsi/jicofo/config have nothing to do with the above passwords?
What is ok: ICOFO_HOST=localhost or ICOFO_HOST=mydomain.com (in /etc/jitsi/jicofo/config)?