计算机维修与维护毕业论文

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1、 毕业论文（设计说明书） (13 届) 题目：计算机维修与维护 姓名：姓名： 系别：电子系系别：电子系 专业班级：专业班级：08 计算机计算机高级班高级班 指导老师：指导老师： 完成时间：完成时间：2012.3.14 Abstract Develops unceasingly along with the computer network and popularizes, the computer network has brought the infinite resources, but the following network security problem also appears

2、 especially important. The article introduced with emphasis based on the WINDOWS system environment middle and small scale network safety control and viral prevention some strategies. Along with the informationization unceasing development, the online edition application software promotion applicati

3、on, the computer network is raising the data transmission efficiency, aspects and so on data sharing is playing more and more vital role, to guarantee each work the security highly effective movement, guarantee network security and systems normal use. This article in view of local area networks info

4、rmation security and the firewall safety works classification and the major technique characteristic, unifies own understanding, from analyzes local area networks security requirements to start, the network security was opposite our real life already is essential, but in the cyberspace cyberspace al

5、so had various hidden dangers. For example: The unlawful means steals the secret data destruction system, the malicious deceit and each kind of virus. In order to prevent the viral invasion local area network, but designed the anti-poison software, the firewall, methods and so on invasion monitor te

6、chnology to prevent the network virus. Therefore we must pay attention to the computer network safe construction are also frequently very important. Key words: network security security Windows security virus 目 录 毕毕 业业 论论 文文 错误!未定义书签。 Abstract 1 引言引言 错误!未定义书签。 第一章第一章 计算机网络安全的概述计算机网络安全的概述 4 4 1.1 计算机网络安全的定义 4 1.2 计算机网络安全的属性. 4 1.3 计算机网络安全机制 4 1.3.1 网络安全技术机制 . 5 1.3.2 网络安全管理机制 . 5 1.4 局域网中计算机网络存在的安全隐患 5 第二章第二章 网络安全需求网络安全需求 5 5 2.1 网络的基本安全需求 5 2.2 应用系统的安全需求 . 6 2.3 平台安全的需求 6 2.4 网络层解决方