【正文】 ............................................. 3 安全隱患 ....................................................................................................... 3 完整性 ............................................................................................... 3 機(jī)密性 ............................................................................................... 3 可用性 ............................................................................................... 4 安全分類 ....................................................................................................... 4 網(wǎng)絡(luò)安全的目標(biāo) ........................................................................................... 4 消除盜竊 ........................................................................................... 4 確定身份 ........................................................................................... 4 鑒別假冒 ........................................................................................... 5 保密 ................................................................................................... 5 第 3 章 企業(yè)數(shù)據(jù)安全 ................................................................................................. 6 數(shù)據(jù)庫(kù)安全 .................................................................................................... 6 數(shù)據(jù)庫(kù)安全問題 ............................................................................... 6 數(shù)據(jù)庫(kù)安全策略與配置 ................................................................... 6 數(shù)據(jù)庫(kù)的加密 ................................................................................... 7 數(shù)據(jù)備份與恢復(fù) ........................................................................................... 8 數(shù)據(jù)備份與恢復(fù) 概述 ....................................................................... 8 數(shù)據(jù)備份策略 ..................................................................................10 數(shù)據(jù)庫(kù)的備份 .................................................................................. 11 第 4 章 網(wǎng)絡(luò)服務(wù)與應(yīng)用系統(tǒng)的安全 ........................................................................12 Web 服務(wù)器安全 ...........................................................................................12 Web 的安全概述 ...............................................................................12 Web 站點(diǎn)的安全和漏洞 ...................................................................12 Web 安全預(yù)防措施 ...........................................................................13 域名系統(tǒng)的安全性 ......................................................................................14 II DNS 的安全威脅 ...............................................................................14 名字欺騙技術(shù) ..................................................................................15 增強(qiáng) DNS 服務(wù)的安全性 ..................................................................15 電子郵件的安全性 ......................................................................................16 Email 的安全風(fēng)險(xiǎn) .........................................................................16 郵件服務(wù)器的安全與可靠性 ..........................................................17 郵件客戶端的安全 ..........................................................................17 第 5 章 網(wǎng)絡(luò)病毒防范 ................................................................................................19 計(jì)算機(jī)病毒概述 ..........................................................................................19 計(jì)算機(jī)病毒的定義 ..........................................................................19 計(jì)算機(jī)病毒分類 ..............................................................................19 計(jì)算機(jī)病毒的特征 ..........................................................................19 計(jì)算機(jī)網(wǎng)絡(luò)病毒的危害性 ..............................................................20 反病毒技術(shù) ..................................................................................................20 計(jì)算機(jī)病毒的防范 ..........................................................................20 計(jì)算機(jī)網(wǎng)絡(luò)病毒的防范措施 ..........................................................22 第 6 章 防火墻及相關(guān)技術(shù)應(yīng) 用 ................................................................................23 防火墻概述 ..................................................................................................23 防火墻的概念 ..................................................................................23 防火墻的目的和功能 ......................................................................23 防火墻的局限性 ..............................................................................24 防火墻的分類 ..............................................................................................25 防火墻的體系結(jié)構(gòu) ......................................................................................25 雙穴主機(jī)體系結(jié)構(gòu) ..........................................................................25 屏蔽主機(jī)體系結(jié)構(gòu) ..........................................................................26 屏蔽子網(wǎng)體系結(jié)構(gòu) ..........................................................................26 防火墻的策略與維護(hù) ..................................................................................27 設(shè)置防火墻的策略 ..........................................................................27 防火墻的維護(hù) ..................................................................................28 入侵檢測(cè)系統(tǒng) ..............................................................................................29 III 入侵檢測(cè)系統(tǒng)的功能及分類 ..........................................................29 入侵檢測(cè)產(chǎn)品的選購(gòu)原則 ..............................................................30 虛擬專用網(wǎng)（ VPN） ....................................................................................30 結(jié) 論 ..........................................................................................................................32 致 謝 ...................................................................................................................