Virtual Private Network or VPN extends a private network across a public network such as the Internet. This allows remote offices or individual users of the organization securely access to their organization or office network from outside the office e.g. Home, Coffee Shops, Around the World via the Internet.
VPN users can send and receive data across the office shared network as if the users were directly connected to the private network while benefiting from the functionality, security and management policies of the private network.
VPN is a secured dedicated connection with encryptions.