|A VPN is one common method of extending a private network across the Internet and gain access to network resources from a remote location in a secure manner. A virtual private network (VPN) is a private network that uses public telecommunications infrastructure, usually the Internet, to connect to a private network, such as a company’s internal network infrastructure. A VPN remains private by using a secure tunneling protocol and other security mechanisms including encryption. This ensures that only authorized users can access the private network and that the data cannot be intercepted by anyone else.
A virtual private network makes it possible to have the same privacy and protection when sharing network resources across WANs. Many companies often use VPNs to communicate across multiple locations for both extranets and wide-area intranets. Individuals may use a VPN to remotely connect to their office computer or server from another location.