[162476] in North American Network Operators' Group
Re: What do people use public suffix for?
daemon@ATHENA.MIT.EDU (Tony Finch)
Fri Apr 19 15:57:48 2013
Date: Fri, 19 Apr 2013 20:57:36 +0100
From: Tony Finch <dot@dotat.at>
To: Joe Abley <jabley@hopcount.ca>
In-Reply-To: <44D9A3C6-1523-4898-94B4-5B88C4233A6E@hopcount.ca>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Joe Abley <jabley@hopcount.ca> wrote:
>
> If the rule was just "the nameservers need to be the same and the SOA
> RDATA needs to be the same, for some well-documented meaning of 'same'"
> then gaming that rule (e.g. for purposes of cookie injection) as a
> miscreant is unpleasantly straightforward.
To reinforce Joe's point, there doesn't even need to be a zone cut for
there to be an administrative cut. There are various ISPs and dynamic DNS
providers that put all their users in the same zone, and the common suffix
of a zone like this should be treated as public suffix even though there
is no zone cut.
Tony.
--
f.anthony.n.finch <dot@dotat.at> http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
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