Stub zones vs minimal responses

[Tony Finch]

Chris Buxton <clists at buxtonfamily.us> wrote:
>
> If an authoritative server is configured to send minimal responses, will
> a stub zone get all the necessary data from that server? What I'm seeing
> is, the recursive server sends an SOA query; the response contains only
> the SOA record, and no NS or A records. The recursive server doesn't
> follow up with an NS record query, and therefore the stub zone fails.
> Queries to the recursive server for data in that zone get a SERVFAIL
> response.

Does the authoritative server answer queries over TCP? After making the
SOA query to refresh a stub zone, BIND calls ns_query() in lib/dns/zone.c
which always uses TCP.

Tony.
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