With the rapid development of Internet, the computer network is gradually becoming a country's economic development foundation and lifeblood of the world dependent on the network is also growing, network security issues attendant becomes increasingly prominent. Network security infrastructure Laboratory, University of Electronic Science and Technology is in this context, to begin related research network security. In this paper, the network information system to conduct a comprehensive

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... g and tracking of online behavior of security auditing technology, developed in line with the audit information security management tools needed to provide technical support for the construction of network security information systems, and on the basis of technical studies on research to develop technical standards and can have independent intellectual property rights and international standards to improve the domestic information network defense capabilities to protect the security of computer information systems.