2.1 Remote Access
Remote access involves giving users outside the bounds of your physical network (i.e. remote users), access to network resources, usually, by permitting them to join the network as an actual node.
A special case of remote access is the Remote Access Service (RAS), provided by Windows, which allows a server connected to one or more modems to be used as a network access point by dial-in users.
Communication security concerns are generally addressed by use of standardized authentication and authorization mechanisms (such as RADIUS, TACACS+ or a VPNs proprietary user authentication/authorization scheme), and by encryption of traffic on the wire as protection against snooping and modification of data. See the footnote for configuring RADIUS in Windows 2003132
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