BIND sometimes doesnt return additional recs when querying SOA ?

Anthony Golia Anthony.Golia at morganstanley.com
Thu Jun 28 13:09:27 UTC 2001


Barry Margolin wrote:

Thanks to you and everyone else who responded.

> 
> In article <9hdm7m$j5j at pub3.rc.vix.com>,
> Anthony Golia  <Anthony.Golia at morganstanley.com> wrote:
> >
> >Hi.  I have a BIND 8.2.3 internal DNS server authoritive for
> >mydomain.com (e.g.) and when I query SOA for mydomain.com it returns
> >additional recs like NS and A rec.  but If I query a subdomain it doesnt
> >return the A/NS recs.
> 
> The Authority and Additional sections are only filled in for data
> referenced in the Answer section.  When you query for the SOA record of a
> subdomain, there isn't anything in the Answer section.

in my example the answer section IS for mydomain.com (although the query
was for foo.mydomain.com, there is no SOA for foo.mydomain.com),
however, the server doesn't include the additional recs.

> 
> >I'm interested in this 'cause Win2K seems to be choking on it.  I have
> >stub zones for _msdcs.mydomain.com, etc. and Win2K machines are querying
> >SOA for subdomains of mydomain.com and BIND isnt returning the
> >additional recs for 'em.  FYI: if I query a Win2K DNS server for
> >subdomains of a domain it's auth for (even one that doesnt exist) it
> >returns the additional recs.  Any response is appreciated.
> 
> There's something wrong with these clients, then.  Putting data in the
> Authority and Additional sections is merely a convenience, it's not
> required.  It saves the client from having to do a separate query for that
> data, but if it's not there they can always do so.

I agree. 

> --
> Barry Margolin, barmar at genuity.net
> Genuity, Burlington, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
> Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.

-- 
Anthony


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