Operating System–Based VPNs
An OS–based VPN is convenient because remote servers may be referred to by their assigned Internet Protocol (IP) addresses rather than use network address translation (NAT). This avoids problems inherent in connecting to servers behind a many-to-one NAT configuration. There are several ways to install a VPN using computers running commercial OSs. Configuration of a VPN connection from a client computer can be accomplished using a variety of OSs, including Windows, Linux, and UNIX.
A VPN is a hardware and software solution for remote workers, providing users with a data-encrypted gateway through a firewall and into a corporate network. VPNs were once practical only for large businesses. Today, however, most businesses—large ...
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