mailing list archives
Re: What do people use public suffix for?
From: Dave Crocker <dhc2 () dcrocker net>
Date: Fri, 19 Apr 2013 13:49:33 -0700
On 4/19/2013 12:57 PM, Tony Finch wrote:
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.
Zones are nice constructs for partitioning operational management of DNS
data, but I believe they were not intended to impart semantics about
The fact that they often correlate moderately well makes it easy to miss
the facts that a) that's not their job, and b) the correlation isn't
perfect. And the imperfections matter.
That is why there is the current interest in developing a cheap,
accurate method that /is/ intended to define organizational boundaries.
Re: What do people use public suffix for? Geoffrey Keating (Apr 15)