Upgrade to rel 7.0 broke SSH

[Ivan Voras]

Olaf Courtney wrote:
> Hello and greetings from Newbyville,
> 
> I recently upgraded from FreeBSD 6.3-RELEASE to 7.0-RELEASE-p4, and now SSH is broken.  Other important services (chiefly SAMBA) are working properly.  From the FreeBSD server I can successfull SSH and SFTP to the localhost (127.0.0.1).  I can also SSH and SFTP to other locations on the network.  However, I cannot SSH and SFTP into the FreeBSD server from the remote locations.
> 
> Attempting to connect from a remote host returns "Connection closed by <ip address of server>".  The bottom portion of the debug output is shown below.
> 
> SSH_CONFIG and SSHD_CONFIG files show that everything is set to defaults. Also, there is nothing that pertains to OPENSSH in /etc/src.conf and /etc/make.conf.  I saw one post that recommended going into the Kernel options.  On this system, there are no options in /boot/loader.conf and /etc/sysctl.conf.  I wouldn't know what to do with them anyways.
> 
> The misc/compat6x libraries are installed as a bandaid.
> 
> Here is the tail end of the output from ssh -vvv <server>:


> Connection closed by 172.27.124.217
> 
> Any ideas?

Abrupt connection closing might be a symptom of the server process
crashing. Is tehre anything in /var/log/messages on the server at the
time this happens?

(for what it's worth, I've successfully upgraded from 6.3-R to 7-STABLE
before).

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