VPN: Difference between revisions

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A key feature of a VPN is its ability to work over both private networks as well as public networks like the Internet.  
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.  
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. <ref>[http://compnetworking.about.com/od/vpn/a/what_is_a_vpn.htm What is a VPN</ref>
VPN technologies includes various security mechanisms to protect the virtual, private connections. <ref>[http://compnetworking.about.com/od/vpn/a/what_is_a_vpn.htm What is a VPN], Computer Networking About.</ref>


== Proxy Server ==
== Proxy Server ==

Revision as of 18:25, 8 February 2014

A Virtual Private Network (VPN) enables a computer to send and receive data across shared or public networks as if it were directly connected to the private network, while benefiting from the functionality, security and management policies of the private network. This is done by establishing a virtual point-to-point connection through the use of dedicated connections, encryption, or a combination of the two ones.

One of the major benefits of using a VPN connection is that the Internet Server thinks you are located in another region than you are in (it may think you are living in Europa, Africa or USA).

VPN ?

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. [1]

Proxy Server

A proxy server is a server (a computer system or an application) that acts as an intermediary for requests from clients seeking resources from other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource available from a different server and the proxy server evaluates the request as a way to simplify and control its complexity. Proxies were invented to add structure and encapsulation to distributed systems.

A VPN tunnel uses one or more Proxy Servers to access the content.

VPN Software

OS VPN Software

  • Hide my ass, Free Proxies and Pro VPN ( approx. $80,= yearly)
  • Tunnel Bear, Canadian based VPN Software (approx. ($50,= yearly).

Browser extensions

  • Hola, Extensions for Chrome and Firefox.

See also

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Reference

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  1. What is a VPN, Computer Networking About.