Improving network connectivity using a VPN
A VPN is a way of connecting to a local network over the internet.
A VPN connection creates a single virtual private network between two points. Each bit of data gets encrypted from point to point via tunneling. Tunneling refers to the process by which VPN packets reach their destination. VPNs operate at the operating system level, redirecting all their traffic through other servers. All traffic, including its physical location, remains hidden during network browsing. When using a VPN, the VPN router, called the proxy server, appears as the origin of the connection, not the real one. So, neither the site offering public access nor anyone else will be able to deduce who you are or what you are doing.
The following diagram shows, with a red line, the tunneling created by the VPN by connecting the workstation to the managed server through the public network:
Figure 5.33 – Virtual private network
A VPN...
