Diffrent DNS Answer by diffrent IP Source Adress

Kevin Darcy kcd at daimlerchrysler.com
Wed Aug 16 00:06:49 UTC 2000


Another approach, which may meet your needs, is to add both A records
and sort the responses via the "sortlist" mechanism of BIND. This gets
you out of the business of maintaining multiple copies of zones, but it
does require that *every* nameserver answering the name be configured
with these sortlists, which can be a logistical nightmare...


- Kevin

Jim Reid wrote:

> >>>>> "Roger" == Roger Caspar <roger.caspar at bluewin.ch> writes:
>
>     Roger> Is it possible to set the configuration from Bind 8.2.2
>     Roger> that he gives diffrent answers by diffrent Source IP??
>     Roger> What kind of configuration i need??
>
> There are two ways to do this. One is split DNS where you have two
> name servers providing different versions of the same zone. Typically
> one is presented to the outside world and the other is only available
> on the internal network. It's possible to configure any name server
> for split DNS, though you may need to have separate servers: one for
> the outside and one for inside. With BIND8, it's possible to run two
> or more name server processes on the same box. Each process can be
> configured to use a specific set of network interfaces and zone
> files.
>
> The second way to do this is with the views{} mechanism in BIND9.
> This allows split DNS to be implemented in one process. One view of
> the name space is made available to some set of IP addresses, another
> view to another set and so on.






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