When I click on the 'mail queues' tab in monitoring, I get a "server error encountered" message with the following details. Being a newbie to Linux and Zimbra, any help would be appreciated.
Thanks

Message: system failure: exception during auth {RemoteManager: localhost.localdomain->zimbra@localhost.localdomain:22}
com.zimbra.cs.service.ServiceException: system failure: exception during auth {RemoteManager: localhost.localdomain->zimbra@localhost.localdomain:22}
at com.zimbra.cs.service.ServiceException.FAILURE(Ser viceException.java:131)
at com.zimbra.cs.rmgmt.RemoteManager.getSession(Remot eManager.java:192)
at com.zimbra.cs.rmgmt.RemoteManager.execute(RemoteMa nager.java:129)
at com.zimbra.cs.service.admin.GetMailQueueInfo.handl e(GetMailQueueInfo.java:55)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:255)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:163)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:84)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:228)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:709)
at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:154)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:802)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:107)
at org.apache.catalina.valves.AccessLogValve.invoke(A ccessLogValve.java:541)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11 ConnectionHandler.processConnection(Http11BaseProt ocol.java:667)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThr ead.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.io.IOException: There was a problem while talking to localhost.localdomain:22
at ch.ethz.ssh2.Connection.connect(Connection.java:64 2)
at ch.ethz.ssh2.Connection.connect(Connection.java:46 0)
at com.zimbra.cs.rmgmt.RemoteManager.getSession(Remot eManager.java:183)
... 24 more
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream. java:168)
at java.net.SocketInputStream.read(SocketInputStream. java:182)
at ch.ethz.ssh2.transport.ClientServerHello.<init>(Cl ientServerHello.java:39)
at ch.ethz.ssh2.transport.TransportManager.initialize (TransportManager.java:304)
at ch.ethz.ssh2.Connection.connect(Connection.java:59 1)
... 26 more

Error code: service.FAILURE
Method: ZmCsfeCommand.prototype.invoke
Details:soap:Receiver