宿舍局域网组建与维护方案设计讲解.doc

吉林大学网络教育2015届本科生毕业论文(设计) 第  PAGE 16 页 共  NUMPAGES 16 页 摘 要 当今世界，各种先进的科学技术飞速发展，给人们的生活带来了深远的影响，它极大的改善我们的生活方式。在以计算机技术为代表的信息科技的发展更是日新月异，从各个方面影响和改变着我们的生活，而其中的计算机网络技术的发展更为迅速，已经渗透到了我们生活的各个方面，人们已经离不开计算机网络，并且随着因特网的迅速普及，给我们的学习与生活条件带来更大的方便，我们与外部世界的联系将更加的紧密和快速。 局域网是各种类型网络中一大分支，有着非常广泛的应用。随着计算机的发展，人们越来越意识到网络的重要性，通过网络，人们拉近了彼此之间的距离。本来分散在各处的计算机被网络紧紧的联系在了一起。局域网做为网络的组成部分，发挥了不可忽视的作用。计算机网络安全需要建立多层次的、立体的防护体系， 要具备完善的管理系统来设置和维护对安全的防护策略。 关键词：局域网 Internet 计算机网络 网络协议 防火墙 Abstract In todays world, all kinds of advanced science and technology rapid development, has brought the profound influence to peoples life, it greatly improve our way of life. In the development of information technology represented by computer technology is changing, from all aspects influencing and changing our life, and one of the more rapid development of computer network technology, has already permeated every aspect of our life, people are inseparable from the computer network, and with the rapid popularization of the Internet bring to our learning and living conditions more convenient, we will contact with the outside world more closely and fast. Local area network (LAN) is a large branch, all kinds of network has a very wide application. With the development of computer, people more and more aware of the importance of the network, through the network, the distance between people closer to each other. Originally scattered everywhere computer is network tightly together. Local area network (LAN) as a part of the network, give play to the effect that cannot ignore. Need to build a multi-level, three-dimensional computer network security protection system, and to have the perfect management system to set up and maintenance of security protection strategy. Keywords: LAN Internet computer network protocol firewall 目 录 引言………………………………………………………………………………… 4  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc349319491 一、计算机网络  PAGEREF _Toc349319491 \h 4