How do I setup a "Multi-homed" DNS?

[Mark Hodge]

named at my-deja.com wrote:

> Hi All
>
> I am interested in setting up a "Multi-homed" Dns (I hope that the
> terminology is correct).
>
> The idea behind it is that I would like our DNS servers to resolve our
> hostname to different addresses based on different factors which I would
> like to specify in the DNS.
>
> The most important factor is where the request came from and to assign
> our closest server IP.
>
> I understand that Cisco has a product called a DistributedDirector DNS
> which assigns an IP address to be returned based on information on
> routing cost from the client entry point to closest server.
>
> Is there any other way to do this such as using specialized software on
> my DNS ?
>

You can do address sorting with BIND version 4.9. It looks at the source
network and returns the address of the 'closest' interface on the host. They
removed it from version 8 for some reason coz they thought it had no place
in the server.

Mark.