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What is a VPN?
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Network Software
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| A VPN supplies network
connectivity over a possibly long physical distance. In this respect, a
VPN is a form of Wide Area Network (WAN). VPNs enable file sharing, video
conferencing and similar network services. Virtual private networks
generally don't provide any new functionality that isn't already offered
through alternative mechanisms, but a VPN implements those services more
efficiently / cheaply in most cases.
A key feature of a VPN is its ability to
work over both private networks as well as public networks like the
Internet. Using a method called tunneling, a VPN use the same
hardware infrastructure as existing Internet or intranet links. VPN
technologies includes various security mechanisms to protect the virtual,
private connections. |
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