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The concept of the VPN (Virtual Private Network) is one that is intended to allow people to make a secure, encrypted connection from point A to point B. in most cases this connection is from a remote location back to the home or an office. VPN actually covers a few different protocols that include IPSEC (IP Security), PPTP (point to point tunnel protocol), L2TP (Layer 2 Tunneling Protocol), SSL (Secure Socket Layer) and a few other less common ones. In recent years it has also become a method to get around DNS blocking and also as a form of maintaining private/ anonymous communication.