Good point! You can reduce TTLs to such a point that the servers will become preoccupied with doing something other than providing answers.
Ray > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > Daniel Karrenberg > Sent: Thursday, July 22, 2004 3:12 AM > To: Matt Larson > Cc: [EMAIL PROTECTED] > Subject: Re: VeriSign's rapid DNS updates in .com/.net > > > 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