proxy servers

Guinness1

Beta member
Hi new to the board...and not a techi so bear with my ignorance. I was using a stat tracker from a blog site i use because I was curious about how it said it could track down ip addresses of people who have visited my site. I'm not really interested in this..I really don't care who visits, but was intrigued on how it worked? So I logged in as a visiter from my computer at work and the ip address given gave the correct city but the actual ip numbers were different than that of my computer. Why is that? This led to a discussion with a co-worker about proxy serversand anonymous surfing. How do they work? Do they work?
 
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