GeoIP and maintaining high availability

[Paul Wouters]

On Fri, 9 Jul 2010, Dave Knight wrote:

> Let's say you have 2 nameservers
>
> 	ns-europe.example.com ( which is physically located in North America )
> 	ns-americas.example.com ( which is physically located in Europe )
>
> and both of those are authoritative for this zone
>
> 	geoip.example.com
>
> Now that's a special zone being operated using the GeoIP patches so that if either of the nameserver receives a query from a European IP it gets a custom answer suitable for Europeans and if it gets a query from an African IP it returns a custom answer suitable for Africans.

Bonus question if you explain how this works when geoip.example.com is DNSSEC signed :)

Paul