A VPN or Virtual Private Network is a private, secure, communication tunnel between two or more devices across a public network such Internet. One benefit derived from using a VPN is that the "tunnel" protects your data from being "overheard" as it passes over the public Internet. Another is that, when using a VPN connection, your computer "appears" on the campus network as if it were on campus.
These VPN devices can be either a computer running VPN software or a special device like a VPN enabled router and allows your home computer to be connected to your office network or can allow two home computers in different locations to connect to each over the Internet.
For security it uses features like encryption, encapsulation, authorization and tunnels. VPN have great secure level because encryption is very strong from 128bit – 2048bit and that is the main reason why they becoming increasingly popular with their many benefits.
A VPN server is a piece of hardware or software that can acts as a gateway into a whole network or a single computer. It is generally always available and listening for VPN clients to connect to it. This enables any user to access a Private Network securely from anywhere in the world as long as an internet connection is available and the private network provides the user the access to its resources. VPN also allow employees to access information from remote locations, making collaboration possible even when employees are scattered around the globe which can significantly reduce costs of any company.
Experts predict that the VPN will continue to grown in popularity as businesses to save money on remote network access for employees. There is many reasons that predict great future for VPNs:
· Works for PC on Windows /Linux/Mac OS
· Works for mobile on Android/Windows/Mobile/iPhone/Blackberry/Symbian
· High level of SSL encryption
· Work over any type of Internet connections (Cable, DSL, dial up, Satellite, Wi-Fi, etc)
· Eliminating the need for expensive long-distance leased lines
· Reducing long-distance telephone charges
· Offloading support costs
· Minimum hardware requirements
· Can provide you with dedicated IP address with which people protect their privacy and surf anonymous without provider logs.
