Subdomain nameserver configuration question...

[Kevin Darcy]

Chris Buxton wrote:
> On Jul 8, 2008, at 11:33 AM, Kyle McDonald wrote:
>   
>> Chris Buxton wrote:
>>     
>>
>>   3) Setup a 'stub' zone for the parent domain. (Is this any different
>> than the 'forward' zone?)
>>     
>
> Yes. The crucial difference (not the only difference) is that, with a  
> stub zone, your server sends iterative queries upstream. With  
> forwarding, it sends recursive queries.
>   
Also, another important difference: if the domain has child zones, 
grandchild zones, etc. with "stub" you'll be sending queries directly to 
the nameservers for the appropriate level of the hierarchy; with 
forwarding, everything is still forced through the same set of 
forwarders. This may or may not be a good thing -- e.g. you might not be 
able to *reach* the nameservers for the descendant zones directly -- but 
generally speaking, with an open (inter)network, it's more efficient to 
"skip" levels of the delegation hierarchy, and to have more diversity in 
the nameservers you talk to. So "stub" usually wins out here.

- Kevin