On Sep 13, 2022, at 5:43 PM, John R Levine <johnl@taugh.com> wrote:
If people want to go that route, the reasonable approach is to make the files available via rsync. There are too many ways to crreate, publish, and apply diffs already. Or IXFR. CZDS distributes zones as compressed master files.
I know. Despite the fact, IIRC, that (with the exception of .COM) they are fetched by ICANN via zone transfer.
Changing it to work by AXFR/IXFR would be quite a challenge.
On ICANN’s side, what more would it require standing up a name server and sharing TSIG keys? If DNS UPDATE were also implemented, it would address the timeliness issue (if the registries were willing to play along). Of course, CZDS users would likely need to change their code. However, this wouldn’t have to be either/or — both could be done with the benefit of using IXFR being only getting the diffs (and, potentially better timeliness). One can dream… Regards, -drc