Network and Computer Security Section: VPNs

Virtual Private Networks: An Introduction

Private Networks can be very secure, but they also tend to be very expensive.

Public Networks (like the worldwide Internet) keep costs down by sharing expensive equipment, connections, and management tasks with the public, but they are far less secure.

Virtual Private Networks or "VPNs" combine the advantages of both, relying on encryption to provide security over public networks.

During the past 20 years, as the modern world has struggled with the conflicts between convenient network access and security, several types of VPNs have come and gone. Because they have all relied on encryption, all of these VPNs have suffered from these encryption-related maladies:

Fortunately, the situation is changing. Some of the governments of the world have finally realized the futility of opposing the development and proliferation of encryption-based VPNs. Workable, practical standards have begun to emerge from government and industry standards bodies. Popular microprocessors are now powerful enough to manage encryption of almost anything in practical terms.

A good example can be found in the well-known "Hamachi" VPN. Click HERE to learn more about it.

Another well-known VPN Technology: The "Point To Point Protocol", or PPTP. CLICK HERE for more!