On Mon, May 25, 2020 at 12:34 PM Lanlan Pan <abby...@gmail.com> wrote:
> > > 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 >>> <war...@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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