Am I anonymous on the Internet when I serf?
Each computer has an IP address on the private network. Each server on the Internet has an unique IP address, which is call a public IP address. When the computer goes onto the Internet through a server or an router, it leaves traces everywhere – that’s the way your information can find their way back to you. With a public IP address, people can identify who owns server (router) and where that server (router) is within some reasonable distance (say 2 miles). Please see sample below: