[dns-operations] negative caching weirdness

[David C Lawrence]

Tony Finch writes:
> The zero TTL in responses to direct SOA queries is a weird feature of BIND
> which is supposed to make zone cut discovery work better. See
> https://lists.isc.org/pipermail/bind-users/2012-June/087844.html

The only references to draft-andrews-soa-discovery appear to be in
this message.

https://www.google.com/search?q=%22draft-andrews-soa-discovery%22

There's older discussions in other messages about zero-no-soa-ttl and
its original basis in RFC 1035, apparently predating zone cut
discovery issues, but I'm curious what Mark's soa-discovery draft
described.

"Hmm," I just thought, "I wonder if the draft name had an error."
Yep.

https://tools.ietf.org/html/draft-andrews-dnsext-soa-discovery-01