[98522] in North American Network Operators' Group
Re: Content Delivery Networks
daemon@ATHENA.MIT.EDU (Patrick W. Gilmore)
Fri Aug 10 15:39:20 2007
In-Reply-To: <20070810164629.56722.qmail@simone.iecc.com>
Cc: "Patrick W. Gilmore" <patrick@ianai.net>
From: "Patrick W. Gilmore" <patrick@ianai.net>
Date: Fri, 10 Aug 2007 14:55:02 -0400
To: Nanog <nanog@nanog.org>
Errors-To: owner-nanog@merit.edu
On Aug 10, 2007, at 12:46 PM, John Levine wrote:
>> Very interesting. We've all heard and probably all passed along
>> that little
>> bromide at one time or another. Is it possible that at one time
>> it was true
>> (even possibly for AOL) but with the rise of CDNs, policies of not
>> honoring
>> TTL's have fallen by the wayside?
>
> I think you'll still see it in spam zombies, some of which have the
> DNS info
> pre-loaded into them in order to avoid split-horizon anti-spam
> techniques.
>
> Not much we can do about that until we get sufficient backbone to deal
> with the zombie problem and its software enablers.
Actually, I think the fact Zombies do not honor TTLs is a feature. :)
--
TTFN,
patrick
