type forward with no recursive flag "rd -" --> Does it work?

Mark Andrews marka at isc.org
Mon Oct 27 20:21:24 UTC 2014


Just delegate windns.mycompany.se.  Add something like this to mycompany.se.

	windns.mycompany.se NS nameserver
	windns.mycompany.se NS nameserver

As as to the answer to your question, no.   Forward zones redirect
recursive from the nameserver queries.

Mark

In message <C84E9BC18F8D074983FE0DCB8525DB2B331522BC at COLUMBA02.user.uu.se>, =?i
so-8859-1?Q?Fredrik_Lys=E9n?= writes:
> Hi,
> When having one zone "windns.mycompany.se" hosted and handled by an
> other nameserver (Windows AD) declared as:
> zone "windns.mycompany.se" {
>         type forward;
>         forward only;
>         forwarders {10.0.0.1; 10.0.0.2;};
> };
> 
> Rest of the zones exist on our primary BIND dns caching nameserver.
> 
> Client looking for "windns.mycompany.se" will have an answer because the
> recursive flag rd (+) are stated and query will be resolved via forwarders.
> When a resolver looking for same information, resolver will send
> recursive rd (-), and the resolver will never get information regarding
> zone  "windns.mycompany.se".
> 
> Question:
> Shouldn't "Asking the forwarders" be prioritized before the "recursive
> rd (-)" flag are taken into consideration? Otherwise I can't see how a
> resolver ever will find information in the forward zone
> "windns.mycompany.se".
> 
> Cheers
> Fredrik Lys=E9n =
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org


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