Shumon Huque <shu...@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 <jab...@hopcount.ca> wrote: > >> On 21 May 2020, at 16:07, Warren Kumari <war...@kumari.net> wrote: >> >> > What does all of this *mean*? >> > .. >> > .. >> > .. >> > Sorry, I haven't a clue, other than maybe: >> > The DNS is weird. >> >> In your experiment it seems clear that all the glue records you are >> looking for are being returned from the involved authority-only servers in >> the additional section, and since for the COM zone that's a >> well-constrained monoculture of software it seems reasonable to imagine >> that's not where to look. >> > > Indeed. Since the COM referral response to glue queries is correct, this > means that some resolvers the Atlas probes are using are promoting glue to > answers. > > 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. > > That would be an interesting but possibly very time consuming project - > but we could focus on the major ones. > > Shumon. > > _______________________________________________ > DNSOP mailing list > DNSOP@ietf.org > https://www.ietf.org/mailman/listinfo/dnsop >
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