I recently upgraded the Ubuntu server housing Openfire. Server is 18.04. Openfire is 4.2.3. Clients can no longer connect.
I checked via netstat and see that there is nothing listening on 5222, 5223, but the admin console is fine on 9090. I have seen some chatter that there could be a problem with Java. Admin console shows it is using 10.0.1. I have tried using “update-alternatives” to choose other Java versions, but no matter what I do, the console shows 10.0.1. Is this the problem, or am I missing something else? If this is it, how do I make openfire use a different version of Java (it shows several are installed).