[46978] in North American Network Operators' Group

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RE: is your host or dhcp server sending dns dynamic updates

daemon@ATHENA.MIT.EDU (Daniel Senie)
Fri Apr 19 15:37:57 2002

Message-Id: <5.1.0.14.2.20020419152917.03c327e0@mail.amaranth.net>
Date: Fri, 19 Apr 2002 15:34:02 -0400
To: "Jeroen Massar" <jeroen@unfix.org>, nanog@merit.edu
From: Daniel Senie <dts@senie.com>
In-Reply-To: <003b01c1e7d5$a67ec260$420d640a@unfix.org>
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Content-Type: text/plain; charset="us-ascii"; format=flowed
Errors-To: owner-nanog-outgoing@merit.edu


At 03:08 PM 4/19/02, you wrote:
>As for the Win2k/XP dyndns updates; it's a great thing when one uses it,
>if you don't simply either ignore all updates
>from these boxes, fix them with that simple clickety click option, some
>nice registry script on user-login and never forget the
>power of policies.

Explain how to fix everyone else's machines in the world. I host the 
domains owl.com and jove.com, among others, for clients. Apparently many 
people around the world would LIKE to own one or the other of these, and so 
program owl.com or jove.com into their Win2K machine setups. Those machines 
then bash the crap out of my name servers with dynamic updates.

We changed the MNAME in the SOA for those two domains to something that 
resolves to 127.0.0.1, and that took care of our load issue.

PLEASE understand the problem is NOT something people running the name 
servers have control over!

This is a totally irresponsible implementation on the part of Microsoft. It 
really reminds me of SNMP Management stations which would do network 
discovery by walking the entire IPv4 address space. Implementers of the 
products did not think through their designs, and many other people suffer 
for it.


-----------------------------------------------------------------
Daniel Senie                                        dts@senie.com
Amaranth Networks Inc.                    http://www.amaranth.com


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