What is a VPN? VPN is the acronym for Virtual Private Network which, unlike other more cryptic computer terms like DNS or HTTP, gives pretty precise clues as to what they’re made of. The key word here is virtual as this property is required by the VPN itself and VPN connections give you many uses.

A VPN connection allows you to create a local area network without its members physically connected, but through the Internet. It’s the “virtual” component that we talked about earlier. You get the benefits of the local area network (and some more) with greater flexibility because the connection is over the Internet and can go from one end of the world to the other, for example. Via the VPN, the laptop can join the company network as if it were there.

However, there is another specialty of VPN connections that are making them so fashionable today: data tunnels. Usually during …

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