【正文】
婁底職業(yè)技術(shù)學(xué)院計(jì)算機(jī)網(wǎng)絡(luò)專業(yè) 畢 業(yè) 論 文 淺析計(jì)算機(jī)網(wǎng)絡(luò)安全和防火墻技術(shù) 姓 名 : 學(xué) 號(hào): 指導(dǎo)老師: 系 名: 專 業(yè): 班 級(jí): 二 OO 九年十二月十三日 淺析計(jì)算機(jī)網(wǎng)絡(luò)安全和防火墻技術(shù) II 摘 要 隨著時(shí)代的發(fā)展, Inter 日益普及,網(wǎng)絡(luò)已經(jīng)成為信息資源的海洋,給人們帶來了極大的方便。但由于Inter 是一個(gè)開放的,無控制機(jī)構(gòu)的網(wǎng)絡(luò),經(jīng)常會(huì)受到計(jì)算機(jī)病毒、黑客的侵襲。它可使計(jì)算機(jī)和計(jì)算機(jī)網(wǎng)絡(luò)數(shù)據(jù)和文件丟失,系統(tǒng)癱瘓。因此,計(jì)算機(jī)網(wǎng)絡(luò)系統(tǒng)安全問題必須放在首位。作為保護(hù)局域子網(wǎng)的一種有效手段,防火 墻技術(shù)備受睞。 本文主要闡述了網(wǎng)絡(luò)安全技術(shù)所要受到的各方面威脅以及自身存在的一些缺陷,所謂知己知彼,百戰(zhàn)不殆。只有了解了網(wǎng)絡(luò)安全存在的內(nèi)憂外患,才能更好的改善網(wǎng)絡(luò)安全技術(shù),發(fā)展網(wǎng)絡(luò)安全技術(shù)。然后主要闡述防火墻在網(wǎng)絡(luò)安全中起到的巨大的作用,防火墻的優(yōu)缺點(diǎn)及各種類型防火墻的使用和效果。 計(jì)算機(jī)網(wǎng)絡(luò)技術(shù)的在飛速發(fā)展中,尤其是互聯(lián)網(wǎng)的應(yīng)用變得越來越廣泛,在帶來了前所未有的海量信息的同時(shí),網(wǎng)絡(luò)的開放性和自由性也產(chǎn)生了私有信息和數(shù)據(jù)被破壞或侵犯的可能性,網(wǎng)絡(luò)信息的安全性變得日益重要,只有熟悉了各種對(duì)網(wǎng)絡(luò)安全的威脅,熟悉 各種保護(hù)網(wǎng)路安全的技術(shù),我們才能更好的保護(hù)計(jì)算機(jī)和信息的安全。 關(guān)鍵字: 計(jì)算機(jī)網(wǎng)絡(luò);網(wǎng)絡(luò)安全;防范措施;防火墻技術(shù) 淺析計(jì)算機(jī)網(wǎng)絡(luò)安全和防火墻技術(shù) III Abstract With the development of The Times, the Inter has bee increasingly popular and work information resources of the sea, and bring great convenience。 But because of the Inter is an open, without control work, puter virus, often by hackers。 It can make the puter and the puter work, the system files and data loss。 Therefore, the puter work system security problems must be given priority。 As the protection of local sub an effective means, firewall technology。 This article mainly elaborated by work security technology to every aspect of the threat and its existence, some defects, socalled awareness。 The existence of the 193039。s and work security, can improve work security technology, the development of work security technology。 And then expounds mainly firewall in work security of huge role plays, advantages and disadvantages of various types of firewall use and effect of the firewall。 The puter work technology, especially in the rapid development of the Inter is being more and more widely applied in brought an unprecedented huge amounts of information, work of openness and freedom in the private information and data were damaged or infringed, the possibility of work information security is being increasingly important, only familiar to all kinds of work security threats, familiar with various protection work security technology, we can better protect the puter and information security。 Key words: Computer work, Network security, The prevention measures, Firewall technology 淺析計(jì)算機(jī)網(wǎng)絡(luò)安全和防火墻技術(shù) IV 目錄 摘 要 .......................................... II Abstract ....................................... III 引言 ............................................ 6 第一章 網(wǎng)絡(luò)安全概述 ............................. 6 計(jì)算機(jī) 網(wǎng)絡(luò)安全的含義 .......................... 6 網(wǎng)絡(luò)信息安全的主要威脅 ........................ 7 自然威脅 .................................. 7 人為威脅 — 黑客攻擊與計(jì)算機(jī)病毒 ............. 7 計(jì)算機(jī)網(wǎng)絡(luò)中的安全缺陷及產(chǎn)生原因 ............... 8 影響計(jì)算機(jī)網(wǎng)絡(luò)安全的因素 ...................... 8 第二章 計(jì)算機(jī)網(wǎng)絡(luò)安全防范策略 .................... 9 防火墻技術(shù) .................................... 9 數(shù)據(jù)加密與用戶授權(quán)訪問控制技術(shù) ................ 11 入侵檢測(cè)技術(shù) ................................. 12 防病毒技術(shù) ................................... 12 安全管理隊(duì)伍的建設(shè) ........................... 12 第三章 防火墻技術(shù) .............................. 13 防火墻的定義 ................................. 13 防火墻的功能 ................................. 13 防火墻是網(wǎng)絡(luò)安全的屏障 ................... 13 防火墻的種類 ............................. 13 防火墻的技術(shù)原理 ............................. 13 防火墻的應(yīng)用 ................................. 14 個(gè)人防火墻的應(yīng)用 ......................... 14 防火墻技術(shù)在校園網(wǎng)中應(yīng)用 ................. 18 結(jié)論 ........................................... 19 淺析計(jì)算機(jī)網(wǎng)絡(luò)安全和防火墻技術(shù) V 致謝 ........................................... 20 參考文