What is virtual private network?

A virtual private network (VPN) is a network technology that creates a secure network across a public network, such as the internet. This private network architecture enables a computer system or network-enabled devices to send and receive data across a private or shared network, as they were connected with the private network, and ensuring the benefits from the functionality, privacy, security and management practices of the public network.
A VPN is built by establishing virtual point-to-point connection through the combined elements like dedicated connections, virtual tunneling protocols and encryption tactics.

In simple terms, a VPN connection is just similar to the WAN connection link between the websites. VPNs are even used to extend the intranets across the world to distribute the data along a wide chain of networks. To gain access over the private network, a user must be authenticated with a unique identification and passwords. A VPN network is specifically designed to offer a secure, encrypted tunnel to transmit the data between a remote  user and a network.

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