[72647] in North American Network Operators' Group
Re: VeriSign's rapid DNS updates in .com/.net
daemon@ATHENA.MIT.EDU (Daniel Karrenberg)
Thu Jul 22 03:22:38 2004
Date: Thu, 22 Jul 2004 09:11:46 +0200
From: Daniel Karrenberg <daniel.karrenberg@ripe.net>
To: Matt Larson <mlarson@verisign.com>
Cc: nanog@merit.edu
Mail-Followup-To: Matt Larson <mlarson@verisign.com>, nanog@merit.edu
In-Reply-To: <20040709192043.GA4366@chinook.corppc.vrsn.com>
Errors-To: owner-nanog-outgoing@merit.edu
Matt, others,
I am a quite concerned about these zone update speed improvements
because they are likely to result in considerable pressure to reduce
TTLs **throughout the DNS** for little to no good reason.
It will not be long before the marketeers will discover that they do not
deliver what they (implicitly) promise to customers in case of **changes
and removals** rather than just additions to a zone.
Reducing TTLs across the board will be the obvious *soloution*.
Yet, the DNS architecture is built around effective caching!
Are we sure that the DNS as a whole will remain operational when
(not if) this happens in a significant way?
Can we still mitigate that trend by education of marketeers and users?
Daniel
