zone delegation/forwarding in a non-recursive view

Barry Margolin barmar at
Fri Oct 25 18:34:20 UTC 2013

In article <mailman.1563.1382698019.20661.bind-users at>,
 Yiorgos Stamoulis <yiorgos-lists at> wrote:

> Hi,
> I have authoritative dns system (1 master bind-9.8.2 & 2 slaves
> bind-9.8.2 & bind-9.3.6) with several zones and two views.
> The internal view allows recursion and the external not.
> I now have the requirement to delegate/forward a zone to an external
> nameserver.
> This works OK for the internal view, but fails for the external as
> recursion is not allowed.
> Is it possible to do this? how?

Forwarding is a modification of recursion -- it tells the server 
"Instead of querying the servers in the NS records, query these specific 
servers." But if you're not recursing (either because recursion is 
disabled, or because the client didn't request it), you won't forward.

Authoritative servers usually don't get requests with the Recursion 
Desired flag -- external caching servers usually do iterative queries. I 
don't understand why this is a problem for you, though. You said you're 
delegating to an external nameserver, so when you return the referral 
they should be able to go there by themselves.

Barry Margolin
Arlington, MA

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