Net Self-defense Systems Business Of Research And Implementation

With the extensive application of the network, the network security problem gradually by the attention of the people. With the increasing complexity of the network environment, and the new methods of attacking is more and more, a single security technology cannot guarantee the safety of the corporate network. It's urgently needed an effective, proactive, positive means of network protection. Since the campus network defense system is a new type of network protection system to overcome many of the shortcomings of traditional firewall and intrusion detection system, at the same time retaining its many advantages.This issue is for the self-defense system of the campus network applications, and based on security access strategy and intrusion detection module carried out in-depth research, design and realization of its strategy and access servers, intrusion detection server, firewall, etc. border modules together constitute a complete step-by-step-security system. First presented in this paper related to the technical content, in-depth discussion and analysis of intrusion detection systems and access strategy and WINDOWS operating system network data packet analysis, analysis of the intrinsic link between them. Secondly, on the network defense system since the basic principle and essential characteristics of decency and the overall structure of module division. Since then discussed defense system design programmer, the specific methods and the use of technology. Since defense system use the intrusion detection systems and the access step-by-step strategy to a combination of achieving its functions. It is be divided into system access, intrusion detection, border firewall three linked modules, and define mutual interface, gives specific programmers. Then, expatiated on a communication module in the system design and realization.The original network does not change too much when the campus network in the application of self-defense system, which be able to improve the network security and also be good at control the precarious node do not entry into the network. The campus network defense system covers a broad. First of all, a best efficiency checking method will be constituted and entrance method will be consummated at the future. The network of resource will be used by high quality and the disturbance of user is going down from the system, moreover the security of network will be evaluated by the automatic system, and then, the real dangerous unsafe node cannot entry into the network.