小型局域网安全分析与设计毕业设计.docVIP

摘 要 随着计算机网络的不断发展和普及，计算机网络带来了无穷的资源，但随之而来的网络安全问题也显得尤为重要，局域网内的安全问题引起了我们的重视。局域网内网的安全隐患给我们带来了许多麻烦，来自网络内部的计算机客户端的安全威胁缺乏必要的安全管理措施，安全威胁较大。未经授权的网络设备或用户就可能通过到局域网的网络设备自动进入网络，形成极大的安全隐患。 本课题对局域网的进行基本的架设，通过局域网所面临的安全进行分析，提出解决安全的方案，对网络安全的防范技术做了分析和比较。在介绍网络安全概念及其产生原因的基础上，介绍了各种信息技术及其在局域网信息安全中的作用和地位，特别是对加强安全应采取的应对措施做了较深入的讨论。 局域网的安全措施应是能全方位地针对各种不同的威胁和脆弱性，这样才能确保网络信息的必威体育官网网址性、完整性和可用性。为了确保信息的安全与畅通，研究局域网的安全以及防范措施已迫在眉睫。 Abstract Along with the computer network development and popularization, computer network brought infinite resources, but following the problem of network security is also appears especially important, local area network security is the cause of our attention. The connection of local area network security hidden danger bringing us a lot of trouble, from the client within the network computer security threat to the lack of necessary safety management measures, bigger security threat. Unauthorized network equipment or the user might through the network to local area network equipment automatic into the network, form the great security hidden danger. This topic of local area network for the erection of the basic, through the LAN facing the safety analysis and put forward the solution of safety scheme of network security preventive technology are analyzed and compared. Introduced in network security concepts and reason was introduced on the basis of all kinds of information technology and in the local area network information security of the function and position, especially to strengthen security should take measures to do a more in-depth discussion. LAN security measures should be to be able to complete the threat to various kinds of different and vulnerability, such ability make sure network information privacy, integrity, and availability. In order to ensure that the information safety and smooth, study the safety measures to prevent and LAN is imminent. Keywords: LAN threat Safety control Virus prevention 目录 第一章 绪论 1 一、网络安全概述 1 (一)网络安全的内容 1 (二)网络安全的关键技术 1 二、课题需解决的问题及设计思想 1