毕业设计（论文）防火墙在网络安全中的应用.doc

郑州轻院轻工职业学院 专科毕业设计（论文） 题 目 学生姓名 专业班级 学 号 系 别 指导教师(职称) 完成时间 防火墙在网络安全中的应用 摘 要 随着计算机网络技术的飞速发展，尤其是互联网的应用变得越来越广泛，在带来了前所未有的海量信息的同时，网络的开放性和自由性也产生了私有信息和数据被破坏或侵犯的可能性，网络信息的安全性变得日益重要起来，已被信息社会的各个领域所重视。本文对目前计算机网络存在的安全隐患进行了分析，阐述了我国网络安全的现状及网络安全问题产生的原因，对我们网络安全现状进行了系统的分析,并探讨了针对计算机安全隐患的防范策略. 正是因为安全威胁的无处不在，为了解决这个问题防火墙出现了。防火墙是网络安全的关键技术,是隔离在本地网络与外界网络之间的一道防御系统，其核心思想是在不安全的网络环境中构造一个相对安全的子网环境,防火墙是实施网络安全控制得一种必要技术。本文讨论了防火墙的安全功能、体系结构、实现防火墙的主要技术手段及配置等。 关键词 网络安全/黑客/病毒/防火墙　　 Firewall Network Security Application ABSTRACT With the rapid development of computer network technology, In particular, the application of the Internet has become more and more extensive, In bringing an unprecedented mass of information at the same time, Open and freely shaped the network also had private information and data have been damaged or the possibility of violations of, Network information security has become increasingly important, has been the information society in all areas of the pie. This article exists on the current computer network security risk was analyzed, elaborated on Chinas network security and network security status of the causes for our network security status of a systematic analysis, and discusses the security risks for computer preventive strategies. It is precisely because security threats everywhere, the firewall in order to solve this problem emerged. Network security firewall is the key technology is to separate the local network and external networks of a defense system, its core idea is in an insecure network environment to construct a sub-network environment of relative security, the firewall is to implement the network security controls were a necessary technique. This article discusses the firewall security features, architecture, to achieve the main technical means and firewall