[SHAME] Spam Rats

Suresh Ramasubramanian 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.
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Karl Auer (kauer at biplane.com.au <javascript:;>)
> http://www.biplane.com.au/kauer
> http://www.biplane.com.au/blog
>
> GPG fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A
> Old fingerprint: AE1D 4868 6420 AD9A A698 5251 1699 7B78 4EEE 6017
>
>
>
>

-- 
--srs (iPad)


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