Board Thread:General Mod Discussion/@comment-28122306-20160418034953/@comment-25101690-20160418163919

VPN (Virtual Private Network) is basically a technique that allows your computer to connect to the internet through the IP of another computer. Your internet conection will be channeld through the other computer and from the outside your own IP adress will be invisible. Many companies/services provide VPN connections and have computers all around the world that can be used to channel your connection. This allows to 1) stay anonymous in the internet and 2) quickly change the computer/IP that is used to connect to the internet. Some vandals of this wiki have used a VPN to be able to change their IP if their original IP is blocked. It's significantly harder, though not completely impossible, to ban a VPN IP. A certain admin (no name here) has also recently used a VPN to submit 10+ votes in a poll to manipulate it.

I hope this explanation helped. If not, feel free to ask for more information.