Quoting Yet Another Ninja <[EMAIL PROTECTED]>:
so the googlepages subdomain used in one spam run, for max 15 minutes
is cached differently than blahasdasdasd.info created by some obscure
script and hosted on some domaincontrol.com NS and also used for one
spam run which lasts for 15 min?$
seems you haven't noticed that the dedicated domain usage has decreased.
for spammy its way more efficient to use googlepages and redirect to a
static site which lasts longer and will probably go unnoticed than
having to setup vhosts every 30 minutes.
Until google figures out how to automate shutting down the accounts,
then it's back to domains. Exact same thing happened with
Yahoo/Geocities. Feeding google the spammed sites is a more effective
way to fight this.
2. Caching of potentially many millions of different subdomains may be
ineffective. There's little reason to re-use the same subdomain in each new
spam when it's trivial to set up another subdomain site. Making
caching less
effective is another possible attack against the nameservers.
exactly, so if its .info or a googlepages, the result is the same.
The effect on caching is the same. However, the number of subdomains
versus domains isn't the same. The numbers potentially aren't even
close (4 orders of magnitude or more different; that's thousands of
times more).
Jeff C.
