James Muir wrote:
Do you have a url for the "findme" ip geolocation utility you tried?
http://local.live.com/
My home IP address is officially registerd to a proxy server in San
Diego. I'm connected via satellite behind the proxy from a very remote
location in northern California, and yet the findme utility properly
identified my actual geographic position. The satellite service provider
has -not- revealed my actual address. ( I checked with friends in their
net ops center.) The data for local.live.com was purchased from a
commercial ip geolocation service who determined my actual, rural
location using undisclosed mechanisms.
I am extremely suspicious that there is a robust method for extracting
IP addresses from behind a proxy. Assuming that your proxy isn't
advertising your IP address in an HTTP header (e.g. X-Forwarded-For),
then they probably got your IP using Java. If you disable Java, then
your IP should remain hidden.
-James
Mike Liebhold wrote:
Most of the big commercial IP geolocation providers, like quova also
have robust and improving capablities to mine ip geolocations for
addresses that might be behind a proxy. I know from personal
experience from behind a proxy a thousand miles away from my
registered address, when I used the findme ip geolocation utility on
a high profile web mapping site.
The International Herald Tribune has an astounding and chilling quote
here from Madam Hu Qiheng, chair of the Internet Society of China,
regarding China's impending wide scale adoption of IPv6, and plans
for more traceable individual IP adresses:
http://www.iht.com/articles/2006/03/19/business/chinet20.php
" The standard, known as IPv6, solves technical problems faced by
the Internet around the world, but Internet freedom advocates outside
China warn that the internationally developed norm would also allow
Beijing authorities - or any government or company for that matter -
to have a better idea of what individuals are doing on the Internet.
"There is now anonymity for criminals on the Internet in China," said
Hu Qiheng, chair of the Internet Society of China, a public-private
group founded five years ago to promote the Internet in China. "With
the China Next Generation Internet project, we will give everyone a
unique identity on the Internet."
[snip]
"It may not be popular everywhere to say this, but I think it is
important for the government to monitor and police the Internet," Hu
said. "Bad things now happen on the Internet, and we want to stop that."
Fighting Internet crime, which Hu defined broadly to include acts
counter to the interests of the Chinese government, requires a more
certain way of identifying people online, she said.
The IPv6 standard, Hu said, offered the best mechanism for
establishing the identity of users online. "
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