forwarding zone to another DNS server problem

[Barry Margolin]

In article <mailman.1168.1415095867.26362.bind-users at lists.isc.org>,
 Tony Finch <dot at dotat.at> wrote:

> houguanghua <houguanghua at hotmail.com> wrote:
> 
> >  I 'm not familiar with'stub'.  The description of 'stub' is hard to
> > understand.
> 
> Yes it's a bit weird. Think of it like the root hints but for other zones:
> i.e. a hint zone configuration in a recursive server tells named that
> instead of using a referral from the parent zone to find the name servers
> for this zone, use these configured name servers. However the name servers
> at the zone's apex can override your configuration.
> 
> If you use static-stub instead, your configured name servers override all
> name servers for the zone that your name server might receive.
> 
> The difference with forwarding zones occurs if there is a delegation point
> below the zone you have configured. With a fowarding zone, named expects
> the target name server to do recursion, so the target server will deal
> with following the referral and resolving the final answer. With a stub
> zone, named expects to get authoritative answers and referrals to child
> zones, and it will do its own recursion to resolve the final answer.

If he wants to do forwarding rather than normal delegation, the 
likelihood is that the servers for the subdomain are not accessible from 
the public Internet. So stub won't help.

-- 
Barry Margolin
Arlington, MA