VIRTUAL PRIVATE NETWORKS (VPNs) are a key technology component in today’s computer security environment. Recall that the Internet is open to virtually any user, while an intranet is open only to individuals within the organization. A third kind of network is the extranet. Extranets lie somewhere between the Internet and an intranet.
Companies use extranets to connect with suppliers and customers, two constituencies that are essential to business processes. Extranets often use VPN technology to ensure confidentiality and integrity of information. VPNs are becoming an increasingly ...
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