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文章论述了信息网络安全内涵发生的根本变化,阐述了我国发展民族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,具体讲述了网络防火墙安全技术特征,防火墙部署原则,并从防火墙部署的位置详细阐述了防火墙的选择标准;就信息交换加密技术的分类及黑客作了简要的分析,论述了其安全体系的构成。
The paper discusses the fundamental changes in the connotation of information network security, expounds the importance of developing national information security system and the necessity of establishing a network security system with Chinese characteristics, and specifically describes the characteristics of network firewall security technology and the principle of firewall deployment. From the location of the firewall deployment, the selection criterion of the firewall is expounded in detail. The classification of the information exchange encryption technology and the hacker are briefly analyzed, and the composition of the security system is discussed.