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Date:      Wed, 23 Sep 1998 22:45:31 -0700 (PDT)
From:      Tom <tom@uniserve.com>
To:        Mark Murdock <fee@tetrahome.tetranet.net>
Cc:        stable@FreeBSD.ORG
Subject:   Re: resolving ips?
Message-ID:  <Pine.BSF.3.96.980923224115.24669B-100000@shell.uniserve.ca>
In-Reply-To: <Pine.BSD/.3.91.980923210157.24463A-100000@tetrahome.tetranet.net>

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On Wed, 23 Sep 1998, Mark Murdock wrote:

> Yet another question for freebsd-stable network experts:
> 
> When I try to telnet to an ip address, my system attempts to contact my
> name servers in my /etc/resolv.conf file.  I was actually unable to telnet
> to an ip due to this when my ipfw configuration was blocking udp on 53.
> 
> Why consult the resolver?  Why not just make your connection based on the
> kernel routing tables?

  Routing tables and DNS are completely unrelated.  Telnet wants to find
the name for the IP it is connecting to.  The resolver will take a long
time if the listed DNS servers don't respond.  It will eventually timeout
and give up, you just aren't patient enough.

> Thanks,
> Mark Murdock
> fee@tetranet.net

Tom


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