VPN is an acronym for Virtual Private Network. A VPN provides an encrypted and secure connection "tunnel" path from a user's machine to its destination through the public Internet.
The Virtual Private Network (VPN) has risen fast to becomea major networking technology in just a few years. With a VPN, you can send data, via a shared or public network in a manner that emulates a point-to-point private link, between two networks (routers), between two servers, or between a client and a server.
the remote PC (installed with a VPN client software) utilizes existing telecommunications infrastructures (e.g., phone lines, broadband services, dedicated Internet link, etc), and a tunneling protocol (incorporated with other authentication and encryption protocols) to securely access resource inside the corporate Intranet through a VPN server which sits at the perimeter of the corporate network.
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