Bind can not resolve.
barmar at alum.mit.edu
Thu Mar 29 01:30:48 UTC 2007
In article <eud6c6$25r1$1 at sf1.isc.org>,
Mark Andrews <Mark_Andrews at isc.org> wrote:
> > bind9 seem to be unable to resolve if during resolution of an A record a
> > CNAME is returned pointing to a parent domain without the corresponding A
> > record.
> > Example: cname.bind9.expol.us
> > Trying CNAME first makes A resolution work, otherwise I get SERVFAIL.
> It would help if the authorative servers actually followed
> RFC 1034. The server should be including the A record in
> the answer as it serves the parent zone. If should also be
> returning a referral to the parent zone (not the child zone)
> if it returns the implicit referral.
While this would certainly make resolution faster, I can't see why
failing to follow the CNAME should cause the resolver to fail. If the
authoritative server doesn't follow the CNAME automatically, the
resolver should do so, just as it must if the CNAME pointed to a zone
that's hosted on a different server from the CNAME itself.
Barry Margolin, barmar at alum.mit.edu
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