8 Feb
2012
8 Feb
'12
3:04 p.m.
On Feb 8, 2012, at 11:58 AM, Anurag Bhatia wrote:
Mike
I can also have a single DNS
server give 192.0.2.80 out to queries sourced from a US IP Address, 198.51.100.80 for queries sourced from a German IP Address and 203.0.113.80 to queries sourced from a Chinese address (djbdns has a module for this for example).
I have never did such setup, but I assume it works as you say. I wonder how it finds a US based system from IP quickly (since it's DNS server)?
Here is *one* method if you obtain a feed of geo-ip data from someone like Maxmind: http://phix.me/geodns/ Several DNS providers have different methods and different geo-ip data vendors. -b