Zero-Configuration VPN Client Design And Implementation

With the popularization of Internet applications, application service model from the C / S structure of the gradual migration to the Web. When corporation implements VPN network, it must face a new challenge, providing flexible and rapid access of the VPN so that users would no longer be need to configure the VPN client, and they can visit at any time to the enterprise's internal resources. At this stage, VPN technology migrating to Web applications is a good solution to solve C / S mode complex install.Existing VPN network technology in the Web applications use SSL protocol mainly, but SSL protocol itself can not support a wide range of application layer protocol. This article will base on SOCKS 5 to study the application of a set of Web-based VPN technology. User will be able to access to the VPN server with opening the browser, do not have any of their browser configuration and install the VPN client, so the entire system, known as zero-configuration VPN client system.This article will focus on the key technologies VPN migrate to Web applications and design Web pages to display. First of all, focus on an analysis of the key technologies to achieve VPN, and the underlying communications network a request to redirect the user, authentication features three sub-modular, and they form a package of ActiveX controls to dynamic Web page. Then design the structure of the basic Web application server program, the realization of dynamic Web pages with ActiveX controls the communication interface between the completion of VPN technology and the combination of Web applications.And compared to general C / S mode VPN client, zero-configuration VPN client with a simple client program, and users opening the Web page will be able to achieve the VPN connection and remote resources; and compared to traditional B / S mode VPN client, zero-configuration VPN client support for more diverse types of applications, achieve a very good purpose of VPN Web.