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Re: [apps-discuss] "finding registered domains"

"John Levine" <johnl@taugh.com> Wed, 13 March 2013 14:43 UTC

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Date: Wed, 13 Mar 2013 14:43:21 -0000
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From: John Levine <johnl@taugh.com>
To: apps-discuss@ietf.org
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Subject: Re: [apps-discuss] "finding registered domains"
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>I am still not very clear about what the problem is and what the possilbe solution is.
>
> Could you kindly summarize it in one or two sentences ?

I agree that use cases would help a lot.  The ones I'm aware of are:

* Web cookies: limit how high up the DNS tree a site can promote its cookies.

* DMARC and other mail authentication: find policy documents for a
domain given one of its subdomains

* SSL/TLS certificates: prevent certificate issue for names at or above public
delegation points

* Variants: state that two parallel names are under the same management (has
issues different from the previous three)

R's,
John

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