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Cc: FreeBSD-questions@freebsd.org
Subject: Re: faster ssh session?
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>
> I have a well and working setup of FBSD 5.4. Nothing much to complain about, but I hope to resolve this oddity.
>
> If I were to open a SSH connection to the box from an IP that cannot be reverse dns queried, the box takes a little while before giving the username prompt. Is there a way to turn off reverse dns query? This happens to the smtp service (running on inetd) as well.

it's more general problem - DNS queries have to timeout.

quickest solution (if it's your private lan) is to add entries to 
/etc/hosts