1034 Resolver Algo Question

William Stacey staceyw at mvps.org
Fri Aug 20 01:33:45 UTC 2004


4.3.2 Step 5 reads "Using the local resolver or a copy of its algorithm (see
resolver section of this memo)"
The server still uses the resolver to build answers from forwarder or hints
right?

-- 
William Stacey

"Barry Margolin" <barmar at alum.mit.edu> wrote in message
news:cg3gl2$1dp2$1 at sf1.isc.org...
> In article <cg2prb$2nf2$1 at sf1.isc.org>,
>  "William Stacey" <staceyw at mvps.org> wrote:
>
> > I also have questions on 4c of 5.3.3
> >          "c. if the response shows a CNAME and that is not the
> >             answer itself, cache the CNAME, change the SNAME to the
> >             canonical name in the CNAME RR and go to step 1."
> >
> > 1) Why does it say "and that is not the answer itself"?  If it was the
> > answer, 4a would have returned it already - no?
>
> True, this is redundant.
>
> > 2) It does not say anything about saving the CNAME rr anywhere.  You
change
> > the Sname to the canonical name in the RR and start at step 1 again.
What
> > happens to the CNAME we just processed?  Lost?  Or do you keep building
an
> > answer section in a tmp reply structure until done or error?
>
> What do you mean by "answer section"?  This is the algorithm for a
> client-side resolver.  Answer sections appear in the packets sent by
> servers; that algorithm is described in section 4.3.2.
>
> -- 
> Barry Margolin, barmar at alum.mit.edu
> Arlington, MA
> *** PLEASE post questions in newsgroups, not directly to me ***
>



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