partial zone?

[P1]

When I created the zone file for host1.testdomain.com, I get the
following error when querying it:

** server can't find host1.testdomain.com: SERVFAIL

I checked the syntax, seems correct.


On Wed, 23 Jul 2008 21:10:47 -0400, Kevin Darcy <kcd at chrysler.com>
wrote:

>PL wrote:
>> Is it possible to have a zone with just a few A-records resolving to
>> local addresses but forwarding all other queries for records not found
>> within the local zone to another server?
>>
>> Example:
>>
>> MyDNSserver would host the testdomain.com zone with:
>> host1 IN A 10.0.0.1
>> host2 IN A 10.0.0.2
>>
>> RealDNSserver would host the same testdomain.com zone with ALL
>> records, including the ones defined in MyDNSserver:
>> host1 IN A 55.55.55.1
>> host2 IN A 55.55.55.2
>> host3 IN A 55.55.55.3
>> host4 IN A 55.55.55.4
>>
>> Now, a client on my 10.0.0.0 network would query MyDNSserver for host1
>> and get an answer of 10.0.0.1 but if it queries for host3, it would
>> get 55.55.55.3 which would come from RealDNSserver which replied to
>> the forwarded request from MyDNSserver.
>>
>>   
>No, once you're authoritative for a zone you don't ask anyone else about 
>it. That would be kind of like asking someone else what your own 
>thoughts or ideas are on a particular subject. There are no "partial" 
>zones; zones are the basic unit of DNS administrative control.
>
>So your options are
>a) make those individual entries (host1.testdomain.com, etc.) separate 
>zones unto themselves (this tends to be rather unmaintainable beyond a 
>certain point) so you can locally "override" the resolution that's 
>coming from RealDNSserver, or
>b) if you have a tight-knit relationship with the maintainers of 
>RealDNSserver, maintain two (or more) different versions of the zone in 
>parallel with each other
>
>- Kevin
>
>