Windows 2003 VPN Server Introduction

I have a lot of friends because the working relationship is often mobile office, so the transfer of information, and the company information in a timely manner or tired to open a company or home computer to see movies and so on application appears very headache. This application means secure network communication over the Internet, sharing resources. and want to achieve this kind of demand, actually already had the best way to--vpn.

A VPN overview.

Before setting up this VPN server, it is necessary to understand some of the relevant knowledge, because the use of VPN services requires a certain network base. A VPN (virtual private network) is a virtualized private network, which is a secure tunnel formed through the Internet by two devices (computers or firewalls) with VPN-initiating connectivity. At the initiator of the tunnel (i.e. the service side), the user's private data is transmitted over the Internet after encapsulation and encryption, to the receiving end of the tunnel (i.e. the client), and the received data is securely reached to the user end after it has been unpacked and decrypted. It is self-evident that this approach can securely transmit private data on an unsecured internet to enable internet-based networking operations. The effect of VPN technology is similar to the traditional DDN line networking, the network topology is shown in the following figure.

Note: The VPN service is built into the Win2K operating system, and this article is based on the configuration of the system's own VPN service.

Second, Windows 2003 VPN server installation configuration.

The VPN service is called "Routing and Remote Access" in Windows2003, and the default state is already installed. Just make the necessary configuration for this service to take effect.

The first step: Select Start-Administrative Tools-Routing and Remote Access, open the Routing and Remote Access Service window, and right-click the local computer name on the right side of the window, select Configure and Enable Routing and Remote Access, as shown in the following illustration: