BIND 9.11 no longer respects edns-udp-size?

Tony Finch dot at dotat.at
Mon Mar 11 14:12:46 UTC 2019


Stéphane Bortzmeyer <bortzmeyer at nic.fr> wrote:
>
> Does minimal-responses make sense for an authoritative name server?
> (Note there was no glue involved.)

I think it helps reduce fragmentation if the max-udp-size is larger than
the MSS, but apart from that it probably doesn't make much difference.

As far as I can tell, clients and resolvers generally re-query for
additional records when they are needed, and they already have the
delegation records which should be the same as the authority records, so
it seems pointless to me to add records to authoritative responses when
they aren't used.

Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Berwick upon Tweed to Whitby: Northwest 5 or 6, backing south 6 to gale 8,
then veering southwest 5 or 6 later. Moderate, occasionally rough, becoming
slight or moderate later. Rain for a time. Good, occasionally poor for a time.


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