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Old 20th February 2007, 10:42
neil6179 neil6179 is offline
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Default Unable to connect via SSH

Hello all,

I am trying to connect to one of my servers in a data centre via SSH, but as of this morning I seem unable to. Can anyone explain to me where the problem may be, based on the output below from the client.

The client hangs for a few minutes after 'debug1: SSH2_MSG_KEXINIT sent', before the connection being closed. This happens from all my machines so I'm assuming it's not a problem with the client.

The client is a Ubuntu 6.06 box and the server is Mac OS X 10.3 (pretending to be a UNIX box).

neil@ubuntu:~$ ssh -vvv admin@www.example.com
OpenSSH_4.2p1 Debian-7ubuntu3, OpenSSL 0.9.8a 11 Oct 2005
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to www.example.com [1.2.3.4] port 22.
debug1: Connection established.
debug1: identity file /home/neil/.ssh/identity type -1
debug1: identity file /home/neil/.ssh/id_rsa type -1
debug1: identity file /home/neil/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_3.6.1p1+CAN-2004-0175
debug1: match: OpenSSH_3.6.1p1+CAN-2004-0175 pat OpenSSH_3.*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.2p1 Debian-7ubuntu3
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
Connection closed by 1.2.3.4

Any help would be much appreciated as I'm unable to connect to the server via any other method.

Thanks
Neil
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  #2  
Old 21st February 2007, 22:52
falko falko is offline
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Default

I don't see any errors in the output.
Maybe you should reset the system and try a new login after it has come up again? If that doesn't help - do you have a rescue system on the server that you can boot into to repair the system (and to scan it for malware/rootkits/trojans...)?
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