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On 18:37 Tue 03 Oct , Simon Waters wrote: > James Fidell wrote: > > > > http://sourceforge.net/projects/geoip/ > > This also got an airing on NANOG a few months back, so read the archive > there for other service providers. > > But the basic question is flawed - IP addresses don't map to country. No, but they can be reliably traced to the owner of that IP block. More often than not, the computer using the IP is in the same country as its owner. Doesn't always follow, of course, but it's a long way from simply not working. > Country is a fairly fluid social construct, IP address is something > technical and well defined. > > Some IP addresses occur in more than one geographical location (The root > DNS server "F" is a good example, as well as RFC1918 space). > > I suspect some IP addresses are probably in geostationary orbit. > > So what is the mapping for? As for marketing purposes there are > "reasonable" databases. and for other purposes there are systems that > measure round trip time from known locations that can approximate > geographical location. I was interested to see where all of my pet brute force login guys were from. Korea and Hong Kong, as it turns out (thanks James).
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