Virtual Private Networks
IN THIS CHAPTER
Examining VPN uses
Looking at how VPN works
Considering VPN clients and servers
Pondering VPN hardware and software
Today’s network users frequently need to access their networks from remote locations: home offices, hotel rooms, beach villas, and their kid’s soccer fields. In the early days of computer networking, the only real option for remotely accessing a network was to set up dialup access with telephone lines and modems, which was slow and unreliable. Today, enabling remote access to a local area network (LAN) is easily done with a virtual private network. Simply put, a virtual private network (VPN) enables remote users to access a LAN via any Internet connection.
This chapter is a short introduction to VPNs. You find out the basics of what a VPN is, how to set one up, and how to access one remotely. Enjoy!
A virtual private network (VPN) is a type of network connection that creates the illusion that you’re directly connected to a network when in fact, you’re not. For example, suppose you set up a LAN at ...