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RE: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations

daemon@ATHENA.MIT.EDU (Erik Amundson)
Mon Apr 18 13:48:43 2005

Date: Mon, 18 Apr 2005 12:45:57 -0500
From: "Erik Amundson" <Erik.Amundson@oati.net>
To: <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu


Windows definitely caches DNS entries...but as far as I've seen, it does
honor TTLs...

Erik Amundson
A+, N+, CCNA, CCNP
IT and Network Manager
Open Access Technology Int'l, Inc.
Phone (763) 201-2005
Fax (763) 553-2813=20
mailto:erik.amundson@oati.net=20
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-----Original Message-----
From: Chris Adams [mailto:cmadams@hiwaay.net]=20
Sent: Monday, April 18, 2005 12:35 PM
To: nanog@merit.edu
Subject: Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on
workstations


Once upon a time, Patrick W. Gilmore <patrick@ianai.net> said:
> Depends on what you call "caching".  Does honoring a TTL qualify as =20
> caching?

What other kind of DNS caching is there?

> Can you imagine what would happen if every time anyone ever looked up

> any hostname they sent out a DNS query?

That's what most Unix/Linux/*BSD boxes do unless they are running a
local caching name service of some time (BIND, nscd, etc.).  I wasn't
actually aware that Windows had a DNS cache service.
--=20
Chris Adams <cmadams@hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.



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