By establishing a private network link over a public network connection, a Virtual Private Network (VPN) provides users with privacy, anonymity, and protection. VPNs and proxy servers, as well as overlay networks, can be used together. VPNs are classified as either host-to-network or remote access when they link a single device to a network, or site-to-site when they connect two networks. Remote-access Virtual Private Networks enable workers to access the company's intranet from outside the workplace in a corporate environment. Site-to-site VPNs enable collaborators in different locations to access the same virtual network. When you link your computer (or another unit, such as a smartphone or tablet) to a VPN, the computer appears to be connected to the VPN's local network. Any of the network traffic is routed via the VPN over a secure link. Since your machine acts like it's connected to the internet, you can safely access local network services even though you're o...