[SHAME] Spam Rats
ops.lists at gmail.com
Fri Jan 11 04:27:36 UTC 2013
Mail is all this discussion is in the context of
On Friday, January 11, 2013, Karl Auer wrote:
> On Thu, 2013-01-10 at 20:23 +0530, Suresh Ramasubramanian wrote:
> > Unused space generally gets a $generate type generic scripted runs which
> > could be whatever, like ip-ad-dr-ess.example.com
> Nothing that actually stores actual RRs will scale to the number of
> addresses available in IPv6.
> If you want a PTR for every possible address in your network, or even
> just every possible address in a single /64 subnet then you are SOL as
> far as IPv6 is concerned. The only way to do it is to fake it - for
> example by synthesising responses on the fly. You can't cache the
> synthesised responses either, that would be inviting a DoS.
> I said this would be "pointless" because if providing RRs were as simple
> as synthesising one on request, then the presence of a PTR record would
> no longer be a meaningful indicator of cluefulness (not that it is now
> IMHO, but opinions clearly differ on that).
> > As for v6 how popular do you see it getting for mail?
> Well - at least as popular as IPv4 - eventually :-)
> Regards, K.
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