The Very Pleasing Network - VPN Services

 VPN is short for Virtual Private Network and is a technology that creates an encrypted secure connection over a less secure network like the Internet. The benefit is that it provides the security that the network on which it is based cannot provide. It uses the internet to transport data. Many such networks can be created by using different systems incorporating encryption and other security mechanisms to ensure that only authorized users can access the network and information cannot be intercepted by the others. It is like a tunnel built to transmit data between a network of say an organization and a remote user. It hides your data and IP address.

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VPN Protocols

The main VPN network protocols are:

IPSec - Developed by the Internet Engineering Task Force, to secure exchanges of data at the IP layer. It is widely used for creating VPNs

PPTP- Point to Point Tunneling Protocol for VPNs developed jointly by Microsoft, US Robotics and several remote access vendor companies. It is now obsolete because of security concerns

L2TP - Layer 2 Tunneling Protocol is an extension of the PPP Protocol (PPP, which establishes connectivity between 2 nodes or computers) L2TP allows ISPs to operate VPNs

SSL - Secure Sockets Layer is the commonly used one nowadays which can be used with a standard web browser. Unlike IPSec, it does not require installation of specialized client software on the end user's computer.