DNS service with a SQL backend

[Norberto Meijome]

Bruno Gallant wrote:
> Hello,
> 
> We are redesigning our DNS infrastructure, which has been running on
> BIND with the regular flat files for years, and there would be a need
> for the data to be in a database. (postgresql or mysql, of course)
> 

On a similar thread, does anyone know of any dns server software that 
would serve different IPs depending on where the query/request comes from?
i.e., - resolve www.mydomain.com to the IP of my server in AU for all 
clients querying from AU,JP and HK. Everyone else should get the IP for 
my server in US.

Akamai provide this service (amongst other cool services of course :) ) 
I think ultradns may do this too. Both use, AFAIK, proprietary solutions.

TIA,
Beto