Issues in delegating to subdomain owned by other company
Mark Andrews
Mark_Andrews at isc.org
Sat Jan 10 22:55:03 UTC 2009
In message <937b61bf-c12f-4498-b20c-8cd5613bd25f at z1g2000yqn.googlegroups.com>,
blrmaani writes:
> I have configured my named (BIND-9) to delegate a subdomain owned by
> our partner company. The queries in the subdomain are failing
> intermittently.
>
> Our partner company IT team is not ready to reveal their DNS
> configuration.
>
> When we delegate a subdomain, should the nameserver to which we
> delegate
> be AUTHORITATIVE?
Not should, MUST be authoritative. It MUST return responses
with "aa" set in the flags to non-reqursive queries for
names within the delegated namespace or it MUST return a
referral to nameservers which in turn are authoritative for
the sub-delegated namespace.
Note: queries for the SOA record at the delegation MUST return
the SOA record with "aa" set. There is no horizontal delegation
in the DNS.
> What happens if the nameserver to which we delegate the subdomain is a
> NON-AUTHORITATIVE nameserver (eg., cache-only name server ). ?
It won't work.
> Could this be the reason for failure?
Yes.
> Any comments?
>
> Cheers
> Maani
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
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