2023年防火墙技术论文三篇.docx

防火墙技术论文三篇 篇一：防火墙技术毕业论文 山西信息职业技术学院 毕业论文（） 防火墙技术 赵亮 指导教师 卫宝川 学生所在系部 论文提交日期 论文辩论日期 20 年 月 日 论文题目：防火墙技术 专 业：信息管理 学 生：赵亮 签名： 指导老师卫宝川wew：wei wei 签名： 因特网的迅猛开展给人们的生活带来了极大的方便，但同时因特网也面临着空前的威胁。因此，如何使用有效可行的方法使网络危险降到人们可接受的范围之内越来越受到人们的关注。而如何实施防范策略，首先取决于当前系统的平安性。所以对网络平安的各独立元素——防火墙、漏洞扫描、入侵检测和反病毒等进行风险评估是很有必要的。 防火墙技术作为时下比较成熟的一种网络平安技术，其平安性直接关系到用户的切身利益。针对网络平安独立元素——防火墙技术，通过对防火墙日志文件的分析，设计相应的数学模型和软件雏形，采用打分制的方法，判断系统的平安等级，实现对目标网络的网络平安风险评估，为提高系统的平安性提供科学依据。对网络平安的威胁主要表现在：非授权访问，冒充合法用户，破坏数据完整性，干扰系统正常运行，利用网络传播病毒，线路窃听等方面。这以要求我们与Internet互连所带来的平安性问题予以足够重视。计算机网络技术的飞速开展使网络平安问题日益突出,而防火墙是应用最广泛的平安产品。本文阐述了网络防火墙的工作原理并对传统防火墙的利弊进行了比照分析,最后结合计算机科学其它领域的相关新技术,提出了新的防火墙技术,并展望了其开展前景。 【关键词】包过滤；应用层网关；分布式防火墙；检测型防火墙；嵌入式防火墙；智能防火墙；网络平安；防火墙防范策略；开展趋势 Title：firewall technology Major：Computer Information Management Name：Zhao Liang Signature： Supervisor：weibaochuan Signature Abstract The rapid development of the Internet brings great convenience to people's life,but at the same time the Internet also is facing an unprecedented threat.Therefore, how to use effective and feasible ways of making the network can be dangerous to the people within receiving more and more attention. And how to implement preventive strategy, first of all depends on the security of the system.So the independent network security elements -- firewall, vulnerability scanning,intrusion detection and anti-virus risk assessment is necessary. A network security firewall technology as nowadays more mature, its security is directly related to the vital interests of users. For independent network security elements -- firewall technology, through the firewall log file analysis, design of the mathematical model and prototype software, using the method of scoring system,what the system's security level, to realize the network security risk assentor the target network, provides scientific basis to enhance the security of the system. The network security threats mainly displays in: unauthorized access,posing as legitimate users, damage to data integrity, interfere with the normal operation of the system, using the network to spread the virus, wiretap etc.. This requires us to safety problems brought about by the interconnection with the Internet paid enough attention. The rapid development of computer network technology make the network security issues have become increasingly prominent, while the firewall is the most widely used security products. This paper expounds the working principle of network firewall and analyzed the advantages and disadvantages of traditional firewall, combined with new technologies related to computer science and other fields, puts forward a new firewall technology, Pandits prospect of development. 【Key Words】packet filteringapplication layer gateway firewall and distributed firewall monitoring embedded firewall network intelligent firewall security firewallprevention strategiesdevelopment trend 目录 1 引言 .................................................................................................................... 1 1.1 研究背景 ................................................. 6 1.2 研究目的 ................................................. 7 1.3 论文结构 ................................................. 7 2 网络平安 .......................................................................................................... 8 2.1 网络平安问题 ............................................. 8 2.1.1 网络平安面临的主要威胁 ............................... 8 2.1.2 影响网络平安的因素 ................................... 9 2.2 网络平安措施 ............................................. 9 2.2.1 完善计算机平安立法 ................................... 9 2.2.2 网络平安的关键技术 ................................... 9 2.3 制定合理的网络管理措施 .................................. 10 3 防火墙概述 .................................................................................................. 11 3.1 防火墙的概念 ............................................ 11 3.1.1 传统防火墙介绍 ...................................... 11 3.1.2 智能防火墙简介 ...................................... 12 3.2 防火墙的功能 ............................................ 13 3.2.1 防火墙的主要功能 .................................... 13 3.2.2 入侵检测功能 ........................................ 13 3.2.3 虚拟专网功能 ........................................ 14 3.2.4 其他功能 ............................................ 14 3.3 防火墙的原理及分类 ...................................... 14 3.3.1 包过滤防火墙 ........................................ 15 3.3.2 应用级代理防火墙 .................................... 15 3.3.3 代理效劳型防火墙 .................................... 15 3.3.4 复合型防火墙 ........................................ 16 3.4 防火墙包过滤技术 ........................................ 16 3.4.1 数据表结构 .......................................... 16 3.4.2 传统包过滤技术 ...................................... 17 3.4.3 动态包过滤 .......................................... 18 3.4.4 深度包检测 .......................................... 18 3.4.5 流过滤技术 .......................................... 19 4 防火墙的配置 ...............................