Content Delivery Networks
Patrick W. Gilmore
patrick at ianai.net
Fri Aug 10 18:55:02 UTC 2007
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
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