[dns-operations] DNS ANY requests / UltraDNS
bert.hubert at netherlabs.nl
Thu Jan 10 14:11:47 UTC 2013
On Thu, Jan 10, 2013 at 02:39:58PM +0100, Miek Gieben wrote:
> [ Quoting bert hubert at 14:10 on January 10 in "Re: [dns-operations] DNS ANY reques"... ]
> > On Thu, Jan 10, 2013 at 08:11:24AM +0100, Florian Weimer wrote:
> > > Some breakage is unavoidable. Considering that ANY queries rarely
> > > give the results expected by the sender, refusing them outright makes
> > > sense to me.
> > For queries to authoritive servers, the result of an ANY query is very well
> > defined and useful.
> A agree with the rest of your mail, but I have to ask. To which document
> do you refer if you say "the result of an ANY query is very well defined"?
>From 1034, 3.7.1:
<any type> matches just that type. (e.g., A, PTR).
* matches all RR types.
>From 1035, 3.2.3:
* 255 A request for all records
>From 1034, 4.3.2:
3. Start matching down, label by label, in the zone. The
matching process can terminate several ways:
Otherwise, copy all RRs which match QTYPE into the
answer section and go to step 6.
What do you think an 'ANY' query to an authoritative server would mean?
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