2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: 'fritzler-avr.de' to remote domain: 'jabber.ccc.de'] - Start domain authentication ...
2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: 'fritzler-avr.de' to remote domain: 'jabber.ccc.de'] - Searching for pre-existing outgoing sessions to the remote domain (if one exists, it will be re-used) ...
2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: 'fritzler-avr.de' to remote domain: 'jabber.ccc.de'] - There are no pre-existing outgoing sessions to the remote domain itself. Searching for pre-existing outgoing sessions to super- or subdomains of the remote domain (if one exists, it might be re-usable) ...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: 'fritzler-avr.de' to remote domain: 'jabber.ccc.de'] - There are no pre-existing session to other domains hosted on the remote domain.

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: 'fritzler-avr.de' to remote domain: 'jabber.ccc.de'] - Unable to re-use an existing session. Creating a new session ...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Creating new session...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Creating plain socket connection to a host that belongs to the remote XMPP domain.

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Creating a socket connection to XMPP domain 'jabber.ccc.de' ...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Use DNS to resolve remote hosts for the provided XMPP domain 'jabber.ccc.de' (default port: 5269) ...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.DNSUtil - No SRV record found for '_xmpps-server._tcp.jabber.ccc.de.'

javax.naming.NameNotFoundException: DNS name not found [response code 3]
	
at com.sun.jndi.dns.DnsClient.checkResponseCode(DnsClient.java:661) ~[jdk.naming.dns:?]
	
at com.sun.jndi.dns.DnsClient.isMatchResponse(DnsClient.java:579) ~[jdk.naming.dns:?]
	
at com.sun.jndi.dns.DnsClient.doUdpQuery(DnsClient.java:427) ~[jdk.naming.dns:?]
	
at com.sun.jndi.dns.DnsClient.query(DnsClient.java:212) ~[jdk.naming.dns:?]
	
at com.sun.jndi.dns.Resolver.query(Resolver.java:81) ~[jdk.naming.dns:?]
	
at com.sun.jndi.dns.DnsContext.c_getAttributes(DnsContext.java:434) ~[jdk.naming.dns:?]
	
at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getAttributes(ComponentDirContext.java:235) ~[?:?]
	
at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:141) ~[?:?]
	
at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:129) ~[?:?]
	
at javax.naming.directory.InitialDirContext.getAttributes(InitialDirContext.java:142) ~[?:?]
	
at org.jivesoftware.openfire.net.DNSUtil.srvLookup(DNSUtil.java:224) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.net.DNSUtil.resolveXMPPDomain(DNSUtil.java:121) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.net.SocketUtil.createSocketToXmppDomain(SocketUtil.java:45) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.session.LocalOutgoingServerSession.createOutgoingSession(LocalOutgoingServerSession.java:250) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.session.LocalOutgoingServerSession.authenticateDomain(LocalOutgoingServerSession.java:209) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.sendPacket(OutgoingSessionPromise.java:264) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.run(OutgoingSessionPromise.java:242) [xmppserver-4.6.2.jar:4.6.2]
	
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
	
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
	
at java.lang.Thread.run(Thread.java:834) [?:?]

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Found 3 host(s) for XMPP domain 'jabber.ccc.de'.

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - - jabberd.jabber.ccc.de:5269 (no direct TLS)

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - - jabberd-ipv6.jabber.ccc.de:5269 (no direct TLS)

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - - jabberd-ipv4.jabber.ccc.de:5269 (no direct TLS)

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Trying to create socket connection to XMPP domain 'jabber.ccc.de' using remote host: jabberd.jabber.ccc.de:5269 (blocks up to 120000 ms) ...
2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Successfully created socket connection to XMPP domain 'jabber.ccc.de' using remote host: jabberd.jabber.ccc.de:5269!

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Opening a new connection to jabberd.jabber.ccc.de/146.255.57.229:5269 that is initially not encrypted.

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Send the stream header and wait for response...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Got a response (stream ID: 383373472551603323, version: 1.0). Check if the remote server is XMPP 1.0 compliant...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - The remote server is XMPP 1.0 compliant (or at least reports to be).

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Processing stream features of the remote domain...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Check if both us as well as the remote server have enabled STARTTLS and/or dialback ...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Both us and the remote server support the STARTTLS feature. Secure and authenticate the connection with TLS & SASL...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Secure connection for: fritzler-avr.de to: jabber.ccc.de] - Securing and authenticating connection ...

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Secure connection for: fritzler-avr.de to: jabber.ccc.de] - Indicating we want TLS and wait for response.

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Secure connection for: fritzler-avr.de to: jabber.ccc.de] - Received 'proceed' from remote server. Negotiating TLS...
2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.spi.EncryptionArtifactFactory - Configured TrustManager class: org.jivesoftware.openfire.keystore.OpenfireX509TrustManager

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.spi.EncryptionArtifactFactory - Attempting to instantiate 'class org.jivesoftware.openfire.keystore.OpenfireX509TrustManager' using the three-argument constructor that is properietary to Openfire.

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.keystore.OpenfireX509TrustManager - Constructed trust manager. Number of trusted issuers: 154, accepts self-signed: true, checks validity: true

2021.04.12 17:45:38 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.spi.EncryptionArtifactFactory - Successfully instantiated 'class org.jivesoftware.openfire.keystore.OpenfireX509TrustManager'.

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.keystore.OpenfireX509TrustManager - Attempting to verify a chain of 2 certificates.
2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.keystore.OpenfireX509TrustManager - Validating chain with 2 certificates, using 139 trust anchors.

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Secure connection for: fritzler-avr.de to: jabber.ccc.de] - TLS negotiation was successful. Connection secured. Proceeding with authentication...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.util.CertificateManager - CertificateManager: Subject Alternative Name Mapping returned [conference.jabber.ccc.de, jabber.ccc.de, jabberd-ipv4.jabber.ccc.de, jabberd-ipv6.jabber.ccc.de, jabberd.jabber.ccc.de, jud.jabber.ccc.de, mail.jabber.ccc.de, palaver.jabber.ccc.de, proxy.jabber.ccc.de, pubsub.jabber.ccc.de, redirector.jabber.ccc.de, services.jabber.ccc.de, stun.jabber.ccc.de, vjud.jabber.ccc.de]

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Secure connection for: fritzler-avr.de to: jabber.ccc.de] - TLS negotiation was successful so initiate a new stream.

2021.04.12 17:45:39 WARN  [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - An exception occurred while creating an encrypted session. Closing connection.

java.io.EOFException: input contained no data
	
at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:3003) ~[xpp3-1.1.4c.jar:?]
	
at org.xmlpull.mxp1.MXParser.more(MXParser.java:3046) ~[xpp3-1.1.4c.jar:?]
	
at org.jivesoftware.openfire.net.MXParser.more(MXParser.java:372) ~[xmppserver-4.6.2.jar:4.6.2]
	
at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1410) ~[xpp3-1.1.4c.jar:?]
	
at org.jivesoftware.openfire.net.MXParser.nextImpl(MXParser.java:337) ~[xmppserver-4.6.2.jar:4.6.2]
	
at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093) ~[xpp3-1.1.4c.jar:?]
	
at org.jivesoftware.openfire.session.LocalOutgoingServerSession.secureAndAuthenticate(LocalOutgoingServerSession.java:481) ~[xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.session.LocalOutgoingServerSession.createOutgoingSession(LocalOutgoingServerSession.java:348) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.session.LocalOutgoingServerSession.authenticateDomain(LocalOutgoingServerSession.java:209) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.sendPacket(OutgoingSessionPromise.java:264) [xmppserver-4.6.2.jar:4.6.2]
	
at org.jivesoftware.openfire.server.OutgoingSessionPromise$PacketsProcessor.run(OutgoingSessionPromise.java:242) [xmppserver-4.6.2.jar:4.6.2]
	
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
	
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
	
at java.lang.Thread.run(Thread.java:834) [?:?]

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Unable to create a new session. Going to try connecting using server dialback as a fallback.

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Create Outgoing Session from: fritzler-avr.de to RS at: jabber.ccc.de (port: 5269)] - Creating new outgoing session...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Creating a socket connection to XMPP domain 'jabber.ccc.de' ...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Use DNS to resolve remote hosts for the provided XMPP domain 'jabber.ccc.de' (default port: 5269) ...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.DNSUtil - No SRV record found for '_xmpps-server._tcp.jabber.ccc.de.' (cached result)

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Found 3 host(s) for XMPP domain 'jabber.ccc.de'.

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - - jabberd.jabber.ccc.de:5269 (no direct TLS)

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - - jabberd-ipv6.jabber.ccc.de:5269 (no direct TLS)

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - - jabberd-ipv4.jabber.ccc.de:5269 (no direct TLS)

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Trying to create socket connection to XMPP domain 'jabber.ccc.de' using remote host: jabberd.jabber.ccc.de:5269 (blocks up to 120000 ms) ...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.net.SocketUtil - Successfully created socket connection to XMPP domain 'jabber.ccc.de' using remote host: jabberd.jabber.ccc.de:5269!

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Create Outgoing Session from: fritzler-avr.de to RS at: jabber.ccc.de (port: 5269)] - Send the stream header and wait for response...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Create Outgoing Session from: fritzler-avr.de to RS at: jabber.ccc.de (port: 5269)] - Got a response. Check if the remote server supports dialback...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Create Outgoing Session from: fritzler-avr.de to RS at: jabber.ccc.de (port: 5269)] - Dialback seems to be supported by the remote server.

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Authenticate domain: fritzler-avr.de with RS: jabber.ccc.de (id: 4703253704345969171)] - Authenticating domain ...

2021.04.12 17:45:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Authenticate domain: fritzler-avr.de with RS: jabber.ccc.de (id: 4703253704345969171)] - Sending dialback key and wait for the validation response...

2021.04.12 17:45:39 WARN  [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Authenticate domain: fritzler-avr.de with RS: jabber.ccc.de (id: 4703253704345969171)] - Ignoring unexpected answer while waiting for dialback validation: <stream:error xmlns:stream="http://etherx.jabber.org/streams"><policy-violation xmlns="urn:ietf:params:xml:ns:xmpp-streams"></policy-violation><text xmlns="urn:ietf:params:xml:ns:xmpp-streams" xml:lang="en">Use of STARTTLS required</text></stream:error>

2021.04.12 17:47:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Authenticate domain: fritzler-avr.de with RS: jabber.ccc.de (id: 4703253704345969171)] - Failed to authenticate domain: Time out waiting for validation response.

2021.04.12 17:47:39 DEBUG [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Create Outgoing Session from: fritzler-avr.de to RS at: jabber.ccc.de (port: 5269)] - Failed to authenticate the connection with dialback.

2021.04.12 17:47:39 WARN  [pool-26-thread-5]: org.jivesoftware.openfire.server.ServerDialback[Acting as Originating Server: Create Outgoing Session from: fritzler-avr.de to RS at: jabber.ccc.de (port: 5269)] - Unable to create a new outgoing session

2021.04.12 17:47:39 WARN  [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Create outgoing session for: fritzler-avr.de to jabber.ccc.de] - Unable to create a new session: Dialback (as a fallback) failed.

2021.04.12 17:47:39 WARN  [pool-26-thread-5]: org.jivesoftware.openfire.session.LocalOutgoingServerSession[Authenticate local domain: 'fritzler-avr.de' to remote domain: 'jabber.ccc.de'] - Unable to authenticate: Fail to create new session.