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OpenVPN: Building and Integrating Virtual Private Networks by Markus Feilner

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How Does a VPN Work?

Let's use an example to explain how VPNs work. The Virtual Entity Networks Inc. (VEN Inc.) has two branches, London and Sydney. If the Australian branch in Sydney decides to contract a supplier, then the London office might need to know that immediately. The main part of the IT infrastructure is set up in London. In Sydney there are twenty people whose work depends on the availability of the data hosted on London servers.

How Does a VPN Work? Virtual Private Network (VPN)working

Both sites are equipped with a permanent Internet line. An Internet gateway router is set up to provide Internet access for the staff. This router is configured to protect the local network of the site from ...

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