Re: feature not available

Don Pandori wrote:

> Hi,
>
> This is going to sound like a newbie question but, is there a way to make
> a DNS server use forwarders iff it doesn't have the entry in its local db?
>
> i.e.
>
> domain.com is hosted internally and on the Internet. (I know bad practice,
> but I inherited this setup)
>
> If host1.domain.com doesn't resolve internally, is there a way for the DNS
> server to send the request for host1.domain.com to its forwarders (which
> can resolve host1.domain.com on the Internet side)?
>
> Kinda like an nsswitch.conf
>
> hosts: files dns
>
> ??
>
> I can't seem to find anything that would be able to do this.

No, the usual methodology is to maintain the external entries in both the
internal and external versions of the zone. In theory, one could simplify the
management of this by having a file containing the common entries $INCLUDE'd
into both versions of the zone file being read by different nameserver
instances or into different "view"s within the same nameserver instance.
I haven't tried this personally though (kinda difficult to use $INCLUDE files
when your whole maintenance system is built around Dynamic Update...)


- Kevin