Re: Content Delivery Networks

[Patrick W. Gilmore]

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