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From Reto Bachmann-Gmür <r...@apache.org>
Subject IllegalStateException attempting to connect via ssh
Date Sat, 10 Nov 2012 21:53:53 GMT
Hi,

I'm wondering if anybody has seen this error before. I see the error only
when starting clerezza as one user on one machine (i.e. no error when
starting as another user).

When I try to connect via ssh (tried different clients and different
machines), I see the following error on the clerezza standard output:

>2012-11-10 22:45:20,148 [NioProcessor-2]  WARN [NioProcessor-2]
(AbstractSession.java\:253) - Exception caught
java.lang.IllegalStateException: Unable to negociate key exchange for item 2
    at
org.apache.sshd.common.session.AbstractSession.negociate(AbstractSession.java:886)
    at
org.apache.sshd.server.session.ServerSession.handleMessage(ServerSession.java:151)
    at
org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:522)
    at
org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:225)
    at
org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:58)
    at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
    at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
    at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
    at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
    at
org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119)
    at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
    at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
    at
org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:715)
    at
org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:668)
    at
org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:657)
    at
org.apache.mina.core.polling.AbstractPollingIoProcessor.access$600(AbstractPollingIoProcessor.java:68)
    at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1141)
    at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
    at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)


And the client trying to connect terminates with an error like this one:

$ ssh admin@localhost -p 8022
no matching cipher found: client
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
rijndael-cbc@lysator.liu.se server

Did anyone experience something similar?

Cheers,
Reto

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