0引言随着计算机网络的发展其应用日益广泛,计算机网络面临的安全威胁越来越多,网络安全管理需求随之增强。从目前看,计算机网络安全面临的安全威胁主要来自两方面。一个是网络攻击行为日益复杂,利用系统漏洞、病毒、用户疏漏等进行网络攻击已经屡见不鲜,各种手段相互融合,新型攻击手段不断涌现;另一个是网络攻击目标日益广泛,网络基础设施、网络端点等所有可能影响系统应用的都能成为网络攻击的目标。对此,急需构建 0 Introduction With the development of computer network, its application is more and more extensive, the security threats that computer network faces are more and more, and the demand for network security management increases accordingly. At present, the security threats to computer network security mainly come from two aspects. One is the increasingly complex network attacks, the use of system vulnerabilities, viruses, user omissions and other network attacks have been commonplace, various means of integration, new attacks continue to emerge; the other is increasingly wide range of network attacks, network infrastructure, network endpoints All that may affect the system application can be the target of a cyberattack. In this regard, urgent need to build