VPN or Virtual Private Network provides secure and reliable private connection between computer networks over an existing public network mostly internet. It is becoming the most secure and fast mode of sharing information in organisations. In fact, it enables organisations to have a safe internal network to support their work.VPN provides flexibility to remote offices and employees to use business intranet over an existing internet connection equivalent to the direct connection to the network. VPN is known for its security mechanisms such as encryption. These mechanisms provide sender authentication to prevent unauthorized users from accessing VPN. It provides such confidentiality that any unauthorised user trying to access the private information can only view the encrypted data. VPN service is chosen by many leading organisations for corporate communication owing to its convenience and efficiency. There are remote accesses VPNs that enable individuals to establish secure connections with a remote computer network. Most operating systems have softwares that can connect to remote access VPNS; this is leading many organisations to opt for VPNs and enjoy the convenience. VPNs are also available in mobiles and routers; it is considered a reliable connection. They are used to seamlessly roam across networks in and out of wireless coverage areas. VPN is deployed on routers for additional security and encryption of data transmission. Such VPN services set up on router allow any connected devices to use the VPN network while it is enabled.
