Openfire stopped accepting connections

Openfire Openfire Support
1

My linux Openfire server 4.2.3 on LEAP 15.1 was working perfectly. I changed nothing that I know of. But now it rejects all connections. The server admin screen works. I have turned off the firewall.
I get messages like these:

2019.07.31 19:18:25 org.jivesoftware.openfire.net.SocketUtil - Unable to create a socket connection to XMPP domain ‘proxy.eu.jabber.org’: Unable to connect to any of its remote hosts.
2019.07.31 19:18:25 org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: ‘myserver.dyndns.org’ to remote domain: ‘proxy.eu.jabber.org’] - Unable to authenticate: Fail to create new session.
I do not have a proxy server
why is Openfire connecting there?

proxy.eu.jabber.org is unknown too.

ping proxy.eu.jabber.org

ping: proxy.eu.jabber.org: Name or service not known

nslookup proxy.eu.jabber.org

Server: 75.75.75.75
Address: 75.75.75.75#53

** server can’t find proxy.eu.jabber.org: NXDOMAIN

2

Openfire shouldn’t automatically connect to proxy.eu.jabber.org. This might be a client that tries to contact it, in case it needs to make use of a proxy server for file transfer.

This does, however, seem unrelated to the larger ‘nothing works’ error. Are you having more generic network issues, perhaps?

3

I changed nothing (unless LEAP upgrades of packages changed things). But I can connect from Pidgin on the same machine as the server, so your suspicion may be correct. However, the firewall is off, and I changed nothing on the router with respect to the port forwards. There are no entries in the pidgin logs either.

4

Ah Ha! It was my dynamic DNS address that had changed.

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