Problems with sshd on FreeBSD 4.11-RELEASE

[Derek Ragona]

You may have an old key on the system you are ssh'ing to the downgraded 
server.  Clear your ssh keys and try it again.

         -Derek


At 05:26 PM 5/31/2006, Andrew Reitz wrote:
>Hello,
>
>For reasons that I don't want to go into here, I have recently
>downgraded my principal FreeBSD server from 6.1 to 4.11-RELEASE. I
>did this by installing a fresh copy of FreeBSD 4.11 on a clean HD,
>and then I rsync'd all of my data over.
>
>Everything has been working fine, until I tried to SSH to the box
>this afternoon. While everything was working fine this morning, now
>sshd hangs up immediately on all clients that attempt to connect. In / 
>var/log/messages, I see errors like this for every ssh connection
>attempt:
>
>May 31 15:21:06 redefine sshd[8543]: error: ssh_dss_sign: sign failed
>May 31 15:21:06 redefine sshd[8543]: fatal: mm_answer_sign: key_sign
>failed
>
>Google hasn't enlightened me at all. This was *just* working a few
>hours ago, and now, nada. Does anyone on this list have any ideas?
>
>Thanks,
>         -Andy Reitz.
>
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