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Re: [DNSOP] Glue is not optional, but sometimes it *is* sufficient...

Tim Wicinski <tjw.ietf@gmail.com> Mon, 25 May 2020 23:08 UTC

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From: Tim Wicinski <tjw.ietf@gmail.com>
Date: Mon, 25 May 2020 19:08:25 -0400
Message-ID: <CADyWQ+FhZuHCLF-XYTw-n-rkUVNvJw5cn2HHKVKOTdMOJM2mEw@mail.gmail.com>
To: Lanlan Pan <abbypan@gmail.com>
Cc: Shumon Huque <shuque@gmail.com>, dnsop <dnsop@ietf.org>, Joe Abley <jabley@hopcount.ca>
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Subject: Re: [DNSOP] Glue is not optional, but sometimes it *is* sufficient...
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On Mon, May 25, 2020 at 12:34 PM Lanlan Pan <abbypan@gmail.com> wrote:

>
>
> Shumon Huque <shuque@gmail.com> 于2020年5月22日周五 下午11:00写道：
>
>> On Fri, May 22, 2020 at 10:52 AM Joe Abley <jabley@hopcount.ca> wrote:
>>
>>> On 21 May 2020, at 16:07, Warren Kumari <warren@kumari..net
>>> <warren@kumari.net>> wrote:
>>>
>>> Has anyone surveyed which of the following category of things are
>> promoting glue to answer: (1) other TLD authoritative services, (2)
>> authoritative server software implementations, (3) "public" (contentious
>> term I know) resolvers, and (4) resolver software implementations?
>>
> some resolvers send the NS_DOMAIN A query to glue ns ip, get the response
> from authority,  and overwrite the glue..
> the TTL of the authority response  is shorter than the glue.
>

(With no hats)

While in general the TTL of the authority response is shorter than the
glue, I can personally attest to domains
out in the wild, that at one point had authority TTL much larger than the
glue TTL.

tim

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