Handling subdomain ?
Mark.Andrews at nominum.com
Mark.Andrews at nominum.com
Thu Sep 14 03:06:24 UTC 2000
It doesn't matter what was given. Your description was wrong. You over
qualified it.
Mark
>
> A non-record-owning, non-subdomain QNAME was stipulated. Thus QNAME doesn't m
> atch
> any label -- even a non-terminal one -- and the algorithm falls through Steps
> 3(a)
> and 3(b).
>
>
> - Kevin
>
> Mark.Andrews at nominum.com wrote:
>
> > Section 4.3.2, Step 3(a) applies first.
> >
> > "a. If the whole of QNAME is matched, we have found the
> > node.
> >
> > If the data at the node is a CNAME, and QTYPE doesn't
> > match CNAME, copy the CNAME RR into the answer section
> > of the response, change QNAME to the canonical name in
> > the CNAME RR, and go back to step 1.
> >
> > Otherwise, copy all RRs which match QTYPE into the
> > answer section and go to step 6."
> >
> > Note:
> > 1. this is independent of type.
> > 2. "all RRs which match type" may be zero.
> >
> > Mark
> > >
> > > Huh? RFC 1034, Section 4.3.2, Step 3(c):
> > >
> > >
> > > > [...]
> > > >
> > > > If the "*" label does exist, match RRs at that node
> > > > against QTYPE.
> > > >
> > > ^^^^^^^^^^^^^
> > >
> > > > If any match, copy them into the answer
> > > > section, but set the owner of the RR to be QNAME, and
> > > > not the node with the "*" label. Go to step 6.
> > > >
> > >
> > >
> > > - Kevin
> > >
> > >
> > > Mark.Andrews at nominum.com wrote:
> > >
> > > > >
> > > > > Sure, just put a wildcard ("*") entry into the something.dk zone. Thi
> s wi
> > > ldca
> > > > > rd
> > > > > record will be matched by any name in the domain which is not a subdo
> main
> > > and
> > > > > which does not have an explicit record of the same type in the zone.
> > > > >
> > > > >
> > > > > - Kevin
> > > >
> > > > '*' matches against a name that does not exist. It is independ
> ent
> > > of
> > > > the query type.
> > > >
> > > > Mark
> > > >
>
>
>
>
>
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
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