First of all, an apology, I haven't a lot of experience with ejabberd and
this may be part of the problem:
1. I've set up an ejabberd instance on AWS, got in working in that gajim
connects to it as yyyy.com etc.
2. I've got the following in ejabberd.yml config file, as the notes on the
jitsi website, I believe:
3. Then going to the unzipped videobridge directory:
./jvb.sh --domain=yyyy.com --secret=xxxx
4. This gives:
JVB 2016-12-26 10:50:50.592 INFO: 
JVB 2016-12-26 10:50:52.606 SEVERE: 
java.net.SocketTimeoutException: connect timed out, host:yyyy.com, port:5275
Nothing in the logs on the ejabberd side and looking at jvb.sh, I believe I
can't enable logging from the zipped package?
Best regards Hugh