redirect query for specific hosts within a domain
Chris Buxton
cbuxton at menandmice.com
Fri Oct 17 19:39:26 UTC 2008
On Oct 17, 2008, at 12:25 PM, Chris Cohen wrote:
> Chris Buxton wrote:
>> On Oct 17, 2008, at 11:46 AM, Chris Cohen wrote:
>>> Hi,
>>>
>>> let's say I have a domain my server is authoritative for, with
>>> something
>>> like:
>>>
>>> $ORIGIN example.org
>>> [...]
>>> statichost1 IN A 10.0.0.1
>>> statichost2 IN A 10.1.0.2
>>> dynamichost1 IN [lookup this hostname on another server]
>>>
>>> the $otherserver is not under my controle, so is it possible to tell
>>> bind to redirect querys to a specific host to another server?
>>>
>>> --
>>> thanks
>>> chris
>>>
>>
>>
>> That depends...
>>
>> - Is the other server going to host a zone named
>> dynamichost1.example.org? Or will it host example.org?
> It also hosts example.org and sadly I can't change that.
>
>> - What do you want your server to send in response to iterative
>> queries? An answer, or a referral?
> An answer.
Can't be done.
In order for your server to give an answer, reliably, when sent an
iterative query (as opposed to a recursive query), it would need to
host the zone that contains the answer. But there is a name clash -
the name you want is contained in a zone that matches your local zone.
Now if only client machines are querying your server (and thus you
only receive recursive queries), and you add the forward zone, then
you don't need a local (slave) copy of the zone. But you still have
the name clash.
Is there some way you can rename your zone to be a different name,
either unrelated or a child of the other zone?
Chris Buxton
Professional Services
Men & Mice
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