> Ok, thank you. I read https://openmeetings.apache.org/HTTPS.html and what I > don't > understand is that om does not listen on port 5443 after starting.
Out of the box, it does. If you can't access it on 5443, check your firewall. > <quote> > Self-signed certificate > This option is available out-of-the-box, just follow the URL: > https://localhost:5443/openmeetings > </quote> I'm only guessing now: is OM running on the same machine as your browser? If not, you need to change or remove the "address" statement in the <Connector port="5443"... stanza in $OM_HOME/conf/server.xml. Something like changing <Connector address="localhost" port="5443" protocol="org.apache.coyote.http11.Http11NioProtocol" maxThreads="150" SSLEnabled="true" keystoreFile="conf/keystore" keystorePass="openmeetings" clientAuth="false" sslProtocol="TLS" /> to <Connector port="5443" protocol="org.apache.coyote.http11.Http11NioProtocol" maxThreads="150" SSLEnabled="true" keystoreFile="conf/keystore" keystorePass="openmeetings" clientAuth="false" sslProtocol="TLS" /> That will allow OM to also bind on the machine's external IP-address, so that it can be reached from other machines. See https://tomcat.apache.org/tomcat-8.5-doc/config/http.html for more detail. Cheers, Z
