how to use bind on 2 subnets

[Kevin Darcy]

De Luyck, Jan wrote:

> Hi
>
> I've been using BIND 8 on a relatively small network lan, just for 8 people
> - no need to segment the ip ranges. Now, recently, we have merged with
> another company, and I'm looking at 100+ people <sigh>.

Hey, it's a fact of life. Mergers happen :-)

> The need to segment the lan has become obvious, since the network traffic
> was close to huge.
>
> So, Ive got my linux server box which runs DNS. It's got two network cards
> in it, (10/100mbit):
> card 1: 192.168.0.*
> card 2: 192.168.1.*
>
> Now i'm wondering... I'm using DHCP on the two segments... Do I need to
> create two DNS zones, namely one for the 0.* and 1 for 1.*, or do I have to
> solve this through routing?

You can put those entries into a single 168.192.in-addr.arpa zone if you want.
I'm not sure what the relevance of DHCP is here, unless your DHCP is expecting
to dynamically update DNS. In this case, any reasonable DHCP implementation
should be able to determine the correct zone and make its dynamic updates
there, regardless of whether it is at the second or third octet boundary.


- Kevin