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RE: is your host or dhcp server sending dns dynamic updates for rfc1918?

  • From: Daniel Senie
  • Date: Fri Apr 19 15:39:41 2002 
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.


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Daniel Senie [email protected]
Amaranth Networks Inc. http://www.amaranth.com