Research And Implementation Of Parsing Firewall Rules Expert System

The widespread using of computer network, has expanded the sharing and interactive of information resource. At the same time the secure question about computer network system also is getting serious day by day. The most commonly used method for the realization of network security safeguards is to take the firewall as the core defense system. The firewall is organic constituent for the network security policy. It realizes effective management through controlling and examining exchange of information and visiting behavior to the network security.This article first introduce basic knowledge about the firewall, the firewall can strengthen security of an organization' interior network, strengthen the access control of the network, prevent exterior user illegal use interior resources, protect the equipment of internal network not to destroy, prevent the sensitive data of internal network is stolen. The firewall system has also decided which internal service may visit by the outside, which people outside may be allowed to visit the internal service, as well as which outside services may visit by the internal user, All information which would pass through Internet should be inspected by the firewall. The firewall only allows authorized data to pass, and firewall itself also must be able avoid seepage.The expert system is a most active domain of artificial intelligence, the expert system is a computer intelligence software, which applying specialized knowledge of specific domain, through inference to simulate complex and concrete question usually which can solve by the human expert, achieved the same level ability with the expert to solve question. It has realized significant breakthrough for the artificial intelligence to move from fundamental research towards practical application, to change from the general inference strategy discussion to the utilization specialized knowledge.