[dns-operations] negative caching weirdness

[Tony Finch]

Daniel Stirnimann <daniel.stirnimann at switch.ch> wrote:
>
> This command should have been without the query type soa in which case
> it returns 86400.

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

Tony.
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