I installed a new subversion repository but I am unable to connect to the repository.
In the old repository it is working as expected. The new repository thorws an exception:
org.eclipse.team.svn.core.connector.SVNConnectorException: svn: E210002: There was a problem while connecting to xn--x7h.example.com:22
at org.polarion.team.svn.connector.svnkit.SVNKitService.handleClientException(SVNKitService.java:59)
at org.polarion.team.svn.connector.svnkit.SVNKitConnector.listEntries(SVNKitConnector.java:1758)
at org.eclipse.team.svn.core.extension.factory.ThreadNameModifier.listEntries(ThreadNameModifier.java:324)
at org.eclipse.team.svn.core.utility.SVNUtility.list(SVNUtility.java:440)
at org.eclipse.team.svn.core.svnstorage.SVNRepositoryContainer.getChildren(SVNRepositoryContainer.java:79)
at org.eclipse.team.svn.core.operation.remote.GetRemoteFolderChildrenOperation.runImpl(GetRemoteFolderChildrenOperation.java:76)
at org.eclipse.team.svn.core.operation.AbstractActionOperation.run(AbstractActionOperation.java:82)
at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTask(ProgressMonitorUtility.java:104)
at org.eclipse.team.svn.core.operation.CompositeOperation.runImpl(CompositeOperation.java:99)
at org.eclipse.team.svn.core.operation.AbstractActionOperation.run(AbstractActionOperation.java:82)
at org.eclipse.team.svn.core.operation.LoggedOperation.run(LoggedOperation.java:40)
at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTask(ProgressMonitorUtility.java:104)
at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTaskExternal(ProgressMonitorUtility.java:90)
at org.eclipse.team.svn.ui.utility.DefaultCancellableOperationWrapper.run(DefaultCancellableOperationWrapper.java:55)
at org.eclipse.team.svn.ui.utility.ScheduledOperationWrapper.run(ScheduledOperationWrapper.java:37)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: org.apache.subversion.javahl.ClientException: svn: E210002: There was a problem while connecting to xn--x7h.example.com:22
at org.apache.subversion.javahl.ClientException.fromException(ClientException.java:117)
at org.tmatesoft.svn.core.javahl17.SVNClientImpl.getClientException(SVNClientImpl.java:1539)
at org.tmatesoft.svn.core.javahl17.SVNClientImpl.list(SVNClientImpl.java:189)
at org.polarion.team.svn.connector.svnkit.SVNKitConnector.listEntries(SVNKitConnector.java:1745)
... 14 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: E210002: There was a problem while connecting to xn--x7h.example.com:22
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:70)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:57)
at org.tmatesoft.svn.core.internal.io.svn.SVNSSHConnector.open(SVNSSHConnector.java:145)
at org.tmatesoft.svn.core.internal.io.svn.SVNConnection.open(SVNConnection.java:77)
at org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.openConnection(SVNRepositoryImpl.java:1273)
at org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.getLatestRevision(SVNRepositoryImpl.java:172)
at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgRepositoryAccess.getRevisionNumber(SvnNgRepositoryAccess.java:119)
at org.tmatesoft.svn.core.internal.wc2.SvnRepositoryAccess.getLocations(SvnRepositoryAccess.java:195)
at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgRepositoryAccess.createRepositoryFor(SvnNgRepositoryAccess.java:46)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteList.run(SvnRemoteList.java:36)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteList.run(SvnRemoteList.java:1)
at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:21)
at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1235)
at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:294)
at org.tmatesoft.svn.core.javahl17.SVNClientImpl.list(SVNClientImpl.java:187)
... 15 more
Caused by: java.io.IOException: There was a problem while connecting to xn--x7h.example.com:22
at com.trilead.ssh2.Connection.connect(Connection.java:817)
at org.tmatesoft.svn.core.internal.io.svn.ssh.SshHost.openConnection(SshHost.java:225)
at org.tmatesoft.svn.core.internal.io.svn.ssh.SshHost.openSession(SshHost.java:153)
at org.tmatesoft.svn.core.internal.io.svn.ssh.SshSessionPool.openSession(SshSessionPool.java:85)
at org.tmatesoft.svn.core.internal.io.svn.SVNSSHConnector.open(SVNSSHConnector.java:122)
... 27 more
Caused by: java.io.IOException: Key exchange was not finished, connection is closed.
at com.trilead.ssh2.transport.KexManager.getOrWaitForConnectionInfo(KexManager.java:92)
at com.trilead.ssh2.transport.TransportManager.getConnectionInfo(TransportManager.java:231)
at com.trilead.ssh2.Connection.connect(Connection.java:769)
... 31 more
Caused by: java.io.IOException: Cannot negotiate, proposals do not match.
at com.trilead.ssh2.transport.KexManager.handleMessage(KexManager.java:413)
at com.trilead.ssh2.transport.TransportManager.receiveLoop(TransportManager.java:765)
at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:480)
at java.base/java.lang.Thread.run(Thread.java:834)
Any ideas?
I checked on server-side what is going on. So I called tail -f /var/log/auth.log and discovered a message that the client and the server was not able to agree on matching kex-algorithms.
Finally my solution was to enable the line
KexAlgorithms +diffie-hellman-group1-sha1
to the corresponding
/etc/ssh/sshd_config
File and restart the sshd-server.