Stephane,thank you very much for your answer!
Best Regards,
Tao Ma
--- 09年9月21日，周一, Stephane Bortzmeyer <[email protected]> 写道：
发件人: Stephane Bortzmeyer <[email protected]>
主题: Re: Does unbound support multiple questions in one query?
收件人: "Tao Ma" <[email protected]>
抄送: [email protected]
日期: 2009年9月21日,周一,下午4:37
On Mon, Sep 21, 2009 at 04:18:38PM +0800,
Tao Ma <[email protected]> wrote
a message of 109 lines which said:
> I sent a query that includes 2 questions to unbound and received a
> "format error" response,dose unbount support this?
No name server I know support multiple questions. They are
theorically possible but creating an answer is often impossible (there
is only one RCODE in the answer, for instance, while the two questions
may yield different results, for instance NOERROR and NXDOMAIN).
There is, from time to time, at the IETF, attempt to standardize a
working subset of "multiple questions queries" (for instance by
requiring that the two QNAMEs are identical) but no result yet.
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