Great explanation . Thanks everyone
(Sent from my mobile device) Anurag Bhatia http://anuragbhatia.com On Feb 9, 2012 1:37 AM, "Joe Provo" <nanog-p...@rsuc.gweep.net> wrote: > On Thu, Feb 09, 2012 at 01:28:07AM +0530, Anurag Bhatia wrote: > [snip] > > 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)? > > > Drop "ip geolocation" or "internet geolocation" into Your Favorite > Search Engine. Short answer is some folks just refer to databases > published/generated by others, some folks use DNS guesses, and some > folks measure packet arrival. And most often, there is a combination > of methods used. > > -- > RSUC / GweepNet / Spunk / FnB / Usenix / SAGE / NewNOG > >
