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文中根据信息网络安全内涵发生的根本变化,阐述了信息安全体系的重要性及建立有中国特色的网络安全体系的必要性,论述了网络防火墙安全技术的分类及其主要技术特征。
According to the fundamental changes in the connotation of information network security, this paper expounds the importance of information security system and the necessity of establishing a network security system with Chinese characteristics. The classification of network firewall security technology and its main technical features are discussed.