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| Subject: | OpenSSH slow to establish connections |
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| Date: | Thu, 27 Sep 2007 22:49:19 +0200 |
Hi I am experiencing problems with connecting to a host on the LAN via SSH. The client runs Ubuntu with OpenSSH version: OpenSSH_4.3p2 Debian-8ubuntu1, OpenSSL 0.9.8c 05 Sep 2006 The server runs Debian Etch with OpenSSH version: OpenSSH_4.3p2 Debian-9, OpenSSL 0.9.8c 05 Sep 2006 When I open an ssh connection to the server (10.0.0.30) it just "hangs" for several seconds before it logs in. I have tried using ssh -vvv for extra verbosity, but I do not understand what's wrong. When it comes to: debug1: identity file /home/tdn/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3p2 Debian-9 debug1: match: OpenSSH_4.3p2 Debian-9 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_4.3p2 Debian-8ubuntu1 debug2: fd 3 setting O_NONBLOCK It just hangs here. Then after several seconds it writes: debug1: An invalid name was supplied Cannot determine realm for numeric host address debug1: An invalid name was supplied A parameter was malformed Validation error Then hangs again several seconds. Then it writes: debug1: An invalid name was supplied Cannot determine realm for numeric host address debug1: An invalid name was supplied A parameter was malformed Validation error debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received After this, the connection is established pretty quickly. Is this a DNS problem? If so, what do I need to do to fix it? The full output from ssh -vvv is available at: http://thomasdamgaard.dk/paste/P962.html I have inserted "[waiting...]" between the lines where it hangs. -- Med venlig hilsen/Kind regards Thomas Damgaard Nielsen http://thomasdamgaard.dk
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