Based on comprehensive information security policy of security system, this paper studies the security of local Area network by network security technology and network security management.

基于安全系统的全面信息安全策略，从网络安全技术和网络安全管理这两个层次上研究内部网的安全性。

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At present, most researches on policy-based network management focuses on two aspects: policy rule research and policy-based network management system.

目前基于策略网络管理的研究工作主要集中两个方面：策略规则研究，包括策略定义语言，冲突检测等研究工作；

youdao

At present, most researches on policy-based network management focuses on two aspects: policy rule research and policy-based network management system.

目前基于策略网络管理的研究工作主要集中两个方面：策略规则研究，包括策略定义语言，冲突检测等研究工作；

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