Virtual Private Network
Briefly define the term Virtual Private Network (or VPN)?
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The word Virtual Private Network (or VPN) signifies the encrypted connection from one point to the other over any network providing the illusion of being a private network. Initially, Marcus Ranum introduced the term virtual network perimeter that in nowadays language signifies a VPN with trust — that is, a network security perimeter extended to comprise other offices and remote users via a VPN link plus common name space, security policies and the management. Obviously, networks are not private except encryption is being utilized. To put it plainly, except you own the space around each and every wire, fiber or radio signal employed in the communication path, your connection is not private except it is encrypted.
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