Re: [DNSOP] I-D Action: draft-huston-kskroll-sentinel-04.txt

Warren Kumari <> Wed, 31 January 2018 00:30 UTC

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From: Warren Kumari <>
Date: Tue, 30 Jan 2018 19:29:35 -0500
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To: George Michaelson <>
Cc: Andrew Sullivan <>, dnsop WG <>
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Subject: Re: [DNSOP] I-D Action: draft-huston-kskroll-sentinel-04.txt
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On Tue, Jan 30, 2018 at 6:44 PM, George Michaelson <> wrote:
> I think we're rat holing. I'm not an author on this draft, but I know
> them both, and I work with one, and I believe the draft is basically
> in the right space and .. well.. we're rat holing.
> So, noting my disclaimer of bias, can we .. move on? Is there real
> matters of substance left on this one? It feels like its close.

There is one matter of substance (but, IMO, very minor substance!) --
the original document said that the names are of the form:

This works, but some implementations really don't like having A/AAA
records for names which start with an underscore... So, we are
proposing to use instead:

Why XM--? Well, we wanted some sort of identifier (that isn't an
underscore), and XM-- felt "similar" to XN--. A quick look through the
.com and .net zonefiles didn't show any collisions (yes, I realize
that this is a tiny slice of the namespace, but it was quick and
easy), nor did looking in various passive-dns and similar places.

For folk who would like try this, I have a PoC / toy implementation at  - note that this uses JS and I'm *so* not a
JavaScript programmer. It works on the browsers that I tested, that's
all I'll commit to :-)

The document could really benefit from a better introduction /
explanation of how this will be used (similar to my earlier
conversational description) and integrating the comments received.
The authors intend to publish this soon.


> -G
> On Wed, Jan 31, 2018 at 4:51 AM, Andrew Sullivan <> wrote:
>> On Tue, Jan 30, 2018 at 10:42:15AM -0500, Joe Abley wrote:
>>> I realise that the following is not what anybody means in this thread
>> Hmm.  Actually, I wasn't sure :-)
>>> I probably missed some. Anyway, I think when people are saying "address record" here they actually mean "IP address record".
>> We should probably say that, then, and also of course we should fix
>> the poor text in the teminology document to point this out.
>> A
>> --
>> Andrew Sullivan
>> _______________________________________________
>> DNSOP mailing list
> _______________________________________________
> DNSOP mailing list

I don't think the execution is relevant when it was obviously a bad
idea in the first place.
This is like putting rabid weasels in your pants, and later expressing
regret at having chosen those particular rabid weasels and that pair
of pants.