threat on national security, economy and social lives. Computer virus have been
produced and spread ceaselessly; computer network has been invaded illegally;
important information and data have been stolen and even network system has been
crashed. Such events have caused enormous damages for governments and enterprises,
sometimes for national security. Therefore, network security has been the focus of
every country in the world and its importance is self-evidenced. Hence, it is
comparatively important to know the computer holes and precaution. Have introduce
the computer network and concept of the online security, has put forward the solution
to the security problem of Internet, think a kind of important means to realize safety
measure of the network is the technology of fire wall.
1、引言.............................................................................................................................................3
1.1 研究的背景.........................................................................................................................3
1.2 研究的范围.........................................................................................................................3
2、网络安全.....................................................................................................................................3
2.1 计算机网络安全的现状.....................................................................................................3
2.2 计算机网络安全漏洞的种类及成因.................................................................................4
2.3 计算机网络面临的威胁.....................................................................................................5
2.4 计算机网络安全防范策略.................................................................................................5
3、防火墙技术.................................................................................................................................5
3.1 防火墙的简介.....................................................................................................................5
3.2 防火墙的关键技术.............................................................................................................6
4、防病毒技术.................................................................................................................................7
4.1 防病毒技术概述.................................................................................................................7
4.2 网络防病毒的基本方法.....................................................................................................8
5、安全扫描技术.............................................................................................................................9
5.1 安全扫描概述.....................................................................................................................9
5.2 常用安全的扫描技术.........................................................................................................9
6、局域网的攻防...........................................................................................................................10
6.1 局域网的简介...................................................................................................................10
6.2 局域网系统漏洞攻防....................................................................................................... 11
6.3 局域网病毒特点及攻防................................................................................................... 11
6.4 局域网安全攻防武器....................................................................................................... 11
