rfc1034 3rd step question.
William Stacey
staceyw at mvps.org
Mon May 17 22:54:06 UTC 2004
> You seem to have missed step 3b:
> b. If a match would take us out of the authoritative data,
> we have a referral. This happens when we encounter a
> node with NS RRs marking cuts along the bottom of a
> zone.
> Copy the NS RRs for the subzone into the authority
> section of the reply. Put whatever addresses are
> available into the additional section, using glue RRs
> if the addresses are not available from authoritative
> data or the cache. Go to step 4.
> The sub1.test.com NS record means that anything.sub1.test.com is out of
> this authoritative zone
True. But aren't we still currently at label "www.sub1.test.com"? We have
not looped yet to search for lable "sub1.test.com" to find the NS records?
Am I still missing something basic? Do you march down the labels toward the
root looking for NS records 3b before starting again looking for
"*.sub1.test.com" in 3c.? It would be cool if some kind sole could do a
pseudo code like in rfc 2136 for algorithum and the resolver logic. I have
worked on it a bit for education purposes, but get stuck on some of these
questions. Cheers!
Thanks Barry!
--
William Stacey
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