Virtual private networks

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Tells how to plan and build a virtual private network (VPN), using a collection of technologies that creates secure connections over regular Internet lines. Starts with general concerns like costs, configuration, and how a VPN fits in with other networking technologies like firewalls, then continues with detailed descriptions of how to install and use VPN technologies for Windows NT and Unix. For network administrators with LAN experience. Annotation copyrighted by Book News, Inc., Portland, OR