R: Minimal responses and speeding up queries

[Job]

Hi Tony,

>>it's a record in the additional section of
the response - specifically the OPT record which includes the EDNS buffer
size, DNSSEC flag, and other extensions

Is there an option to disable completely the OPT record information provided from Bind?

Thank you!
Francesco
________________________________________
Da: Tony Finch [dot at dotat.at]
Inviato: giovedì 22 settembre 2016 16.52
A: Job
Cc: bind-users at lists.isc.org
Oggetto: Re: Minimal responses and speeding up queries

Job <Job at colliniconsulting.it> wrote:
>
> Actually, dig @host some_url still shows an additional query, maybe not
> needed for a caching-only resolver:
>
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

That isn't an additional query, it's a record in the additional section of
the response - specifically the OPT record which includes the EDNS buffer
size, DNSSEC flag, and other extensions.

Tony.
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