From owner-freebsd-questions  Tue Aug 27  7:56:41 2002
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Date: Tue, 27 Aug 2002 07:59:43 -0700
From: Nathan Kinkade <nkinkade@dsl-only.net>
To: Andreas Wideroe Andersen <awand@pragma.no>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: What's this? (ssh)
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On Tue, 27 Aug 2002 10:44:18 +0200
Andreas Wideroe Andersen <awand@pragma.no> wrote:

> A few weeks ago I upgraded the SSH daemon on my FreeBSD 4.6 STABLE 
> server from version 1 to OpenSSH version 2. I disabled version 1 by 
>   only referring to PROTOCOL 2 in the sshd_config file. Everything 
> works great, but there's one strange thing that I'd like to get an 
> explination to.
> 
> When I ssh from the server where I'm running SSH version 2 to 
> another FreeBSD server (4.5 STABLE) with SSHD version 1 I get 
> prompted with this 3 times before I can type my password:
> 
> S/Key Password:
> otp-md5 ...
> 
> What is this and can/should I remove it, and if so, how?
> 
> Thanks for any information!
> /Andreas

In your sshd_config file, change
ChallengeResponseAuthentication yes
to
ChallengeResponseAuthentication no
...then a `killall -HUP sshd` should cause sshd to re-read the
config file.

Nathan

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