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Table Of Contents  CertiGuide to Network+
 9  Chapter 0000:  Network Basics
      9  VI  Private vs Public Networks

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Public Networks
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VII  Intranets, Extranets and Internets
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Virtual Private Networks

Just as hosts on MAN’s and WAN’s can be selectively combined into VLAN’s, it is also possible to merge a collection of hosts on a public network into a Virtual Private Network (VPN).

Virtual Private Networks are becoming more and more popular as users seek to combine the financial efficiencies of public networks such as the Internet, with the access controls and security provided by private networks. Data on a VPN typically travels over the public telecommunications infrastructure, and is encrypted so that only users with authority to participate in the VPN can access it. Additionally, it is usually the case that unauthorized users can’t even see the resources available on the VPN. We’ll revisit the topic of VPN’s in more detail when we discuss network security.


Previous Topic/Section
Public Networks
Previous Page
Pages in Current Topic/Section
1
Next Page
VII  Intranets, Extranets and Internets
Next Topic/Section

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