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The Definitive Guide to CentOS by Ralph Angenendt, Tim Verhoeven, Peter Membrey

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C H A P T E R  10

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Setting Up Virtual Private Networks

If you need an explanation of what the Internet is, here's a simple one: the Internet is the aggregation of all connected networks that use the Internet protocol. This also means that you can run your personal internet (lowercase i) by connecting a group of networks together that all use the Internet protocol. And many companies do exactly that. They have their own private internet, often called an intranet, of which only a small part is really connected to the Internet (capital I). Clients in the private internet normally connect to the “real thing” over proxies or routers that translate ...

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