question about multiple queries in a single dns packet
fbarbieri at betaversion.org
Fri Dec 31 11:21:09 UTC 2010
hmm.... not the answer I was hoping for but clear and final...
I've been interpreting
and guessed that QDCOUNT could have been used that way.
will look for alternative solutions.
Thanks a lot guys for the quick reply.
On Wed, Dec 29, 2010 at 11:52 PM, Michael Sinatra <
michael at rancid.berkeley.edu> wrote:
> On 12/29/10 14:06, Alan Clegg wrote:
>> On 12/29/2010 2:17 PM, Federico Barbieri wrote:
>>> Not sure if this is the right place to ask but I've been trying to dig
>>> around and found nothing...
>>> reading the dns specification it would seems possible to send multiple
>>> request in a single packet.
>> I'm not sure what the actual reference is, but "don't do that".
>> Nobody supports it (what would the answer section contain? what does
>> the RCODE actually mean?)...
> I believe it's in the EDNS1 specification that Paul did a while back, after
> EDNS0. I don't think it ever got advanced to RFC:
> See especially section 4.
> The answer to your question on RCODE:
> 4.2. RCODE and AA apply to all RRs in the answer section having the
> QNAME that is shared by all questions in the question section. AA
> applies to all matching answers, and will not be set unless the exact
> original request was processed by an authoritative server and the
> response forwarded in its entirety.
> bind-users mailing list
> bind-users at lists.isc.org
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