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The virtual private network connection otherwise known as VPN connection is a secured computer network that is implemented as an additional software layer on the top of an existing network for enhancing the private scope of computer communications or facilitating a secure extension of a private network into an insecure network called internet.
VPN connection is basically used by large business organizations & corporate to enable their employees to have access to the secure organizational network from remote desktop. A VPN connection involves a complex network structure than the most widely used point-to-point connection system. They enable us to browse the World Wide Web anonymously & have access to secured network in restricted areas.
A great many number of companies are slowly coming to realize the actual benefits of VPN connection. It caters to their networking needs with the desirable features of speed, reliability, security & functionality yet helps them save considerable money.
Prior to emergence of virtual private network connection service, business houses had to rely on networks created from physically linked connections so that they could share data in a secure manner among a selected group. However, sharing a huge amount of information within the country or the whole world required them to spend much towards modem banks & WANs.
Now the VPN connection has brought about the third party internet transport facility which companies can use successfully to connect the telecommuters, remote users & even remote offices with the main corporate site. They can also consider incorporating DSL technologies to increase the remote connection bandwidth capacity further thereby reducing its cost effectively. These savings on cost can later be invested in the productivity enhancement of the whole team.
The virtual private network connection allows for the expansion in the ability of the network in scale without the need of any additional infrastructure. Again the companies using lease-line networks can easily opt for additional physical band-width & have the facilities of VPN connection within the same cost. The VPN is found compatible with the devices & ISPs & make way for new user addition.
The use of advanced authentication & encryption protocols in VPN not only prevents unauthorized access of transmitted data but also provides highest level of security. There is more sophisticated data encryption technology such as SSL but it can't be used everywhere. But VPN is free from any such restriction & offers more flexibility while trying to meet the company's data sharing requirement.
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Source by Pankaj Kumar Singh
