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VPN or virtual private network is a secure network that mainly relies on infrastructure for public telecommunication such as the Internet, to provide access to a central network. The connection uses an encrypted system, as an option when contacting websites. It gives remote offices or users who are constantly on the move, easy access. The VPN service requires the remote users who are part of the network to be authenticated. The encryption technology helps to prevent unauthorized parties from accessing private information. VPN has many functions including data sharing and access to resources from the network. Other services include websites, printers and databases among others.A user will typically experience the central network the same way as being directly connected to the central network. The use of the VPN technology through the Internet has meant that it is no longer necessary to acquire expensive telecommunication installations. Using VPN service and technology helps to reduce costs because the need for physical lines has been removed, and is no longer necessary for remote users. The basic concept is that the World Wide Web is used to transmit the messages, yet the same security available when dealing with a personal computer is available. The VPN providers often use one of two systems to setup the network connection. There are those who install the VPN connection as an extra connection on the computer control panel. Others use a downloadable file that the user can install to make the configuration. Those who are not familiar with the networks opt for the latter option. When users communicate using the Internet, the connection or VPN will encrypt the data, to make sure that it is not read by just anyone who happens to intercept it. The VPN server on the other end of the communication, takes the message and forwards it to the appropriate recipient. When the server makes the connection, the recipient is only able to see the servers IP address , and not that of the sender. This means that the message remains anonymous when it is in the service. The server does not retain any logs that can be traced to the sender. Any requests made to the server are untraceable, which makes the service very attractive to many users. The popularity of the vpn service networks has been due to this privacy feature. The service providers allow users to explore the Web without worrying about who may be trying to trace them. Sensitive data can remain secure, and is safe from prying eyes. The communications between the user and the server is entirely encrypted, ensuring that the footsteps are also untraceable. The connections are easy to set-up and run, making them attractive to all internet users’ vpn service.
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