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What is a VPN? A simple definition of Virtual Private Network, or VPN, as it is commonly known, is the use of a public network - mainly the Internet, to create private, secure wide area networks. A more formal definition of a VPN: a combination of tunneling, encryption, authentication, and access control technologies and services used to carry traffic over the Internet, a managed IP network or a provider's backbone. The traffic reaches these backbones …

…Robert. Take a Hard Look at Virtual Private Networks. Network Computing. HTTP://www.networkcomputing.com/817/817colmoskowitz.html Salamone, Salvatore. Understanding VPN Performance. Internet Week, June 21, 1999. Issue 770. Sullivan, Kristina. VPN Market Tide Rises High. PCWeek Online, March 22, 1999. HTTP://www.zdnet.com Wallace, Bob. Firewall Apps to Boost VPN Security, Efficiency. Computer World, April 19, 1999. Consider These...The Top VPN User Concerns. Telechoice, Network World Technical Seminars. HTTP://www.nwfusio! n.com/whitepapers/vpn99_wp.html ------------------------------------------------------------------------ **Bibliography**