Re: [DNSOP] Questions on draft-ietf-dnsop-delegation-only

Joe Abley <jabley@hopcount.ca> Tue, 03 November 2020 21:15 UTC

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From: Joe Abley <jabley@hopcount.ca>
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Date: Tue, 03 Nov 2020 16:15:23 -0500
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To: Paul Wouters <paul@nohats.ca>
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Subject: Re: [DNSOP] Questions on draft-ietf-dnsop-delegation-only
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Hey,

On 3 Nov 2020, at 10:49, Joe Abley <jabley@hopcount.ca> wrote:

>>> Well, 200+ TLD's are now removing this problematic orphan glue due to
>>> security reasons unrelated to this draft.
> 
> I have not done a survey of other TLD zones, but perhaps if I have a few spare minutes I'll take CZDS for a spin and see what I can see there.

I don't have access to all zone data in CZDS since some registries take longer to approve access than others. It's perhaps also worth mentioning that CZDS doesn't carry any ccTLD zone data. This is not a representative sample.

From a quick look (with very little checking, and more than a little crude scripty hackery) it looks to me like 217 TLDs have at least one orphan glue record and 872 have none, based on this incomplete sample.

jabley@manta bin % jq '.zones | map_values(select(.orphans > 0)) | keys | length' zonedata.json
217
jabley@manta bin % jq '.zones | map_values(select(.orphans == 0)) | keys | length' zonedata.json
872
jabley@manta bin % 

See attached, if you feel like slicing the data some other way (or checking it).


Joe