Studying Of The Individual Firewall Based Of Windows9x/2000

With the rapid development of computer network, the safety of network can't be ignored, and as one of the settlement, firewall seems to be particularly important. While there aren't many firewall.Available that aim directly at individual users and also be easily used. This article just based on that background. In this article, the author firstly discussed various kinds of hidden danger of the high-speed network and the role of the firewall. And then he showed firewall's system and structure to the readers, and meanwhile made a through analysis. On the basis of this work, the author further put emphasis on discussing and studying the function of the individual firewall as well as the important technique to realize it. That's making the network's data packets be intercepted and captured in Windows different levels. Based on analyzing the safety needs of today's individual network users and general implemental technique of the firewall, the author showed us the original shape of the firewall that mentioned in this article and the process of the system's design and implement. This firewall adopts designing thought of module, NDIS and Winsock II technique. It realized the intercepting and capturing of the network data packets. Moreover, it designed detailed daily record and simple and direct operating interface that is also easy to be understood. After finishing the designing of the individual firewall, the author carried out a test about some of the realized module by using monitoring software.The unceasing progress of the network technique will no doubt raise a new functional requirement for the firewall. The function of the individual firewall should also be improved ceaseless so as to provide safer and more effective guarantee for individual network users.