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1、网络络安全与管理Unit 1 计算机网络安全与管理任务分析田华2009年10月工作任务了解公司网络结构，明晰网络安全与网络管理 任务。Page 2网络结构-1Page 3图1-1 公司网络结构示意图网络结构-2Page 4图1-2 总公司局域网网络拓扑结构图网络结构-3Page 5图1-3 分支机构网络拓扑结构图网络安全管理工作任务 1、防御来自Internet的网络入侵和攻击。 2、解决公司与分支机构间使用Internet线路通信时 通信数据安全问题。 3、解决公司网络中IP地址资源不足。 3、解决局域网中，生产网络、办公局域网各种潜在 安全威胁，如病毒问题、非授权访问网络资源问题 、非授权
2、变更网络结构等。Page 6工作任务1、根据网络需求变化，使用工具对网络进行配置、 调整。 2、当网络发生故障时，能够发现、跟踪故障现象， 记录故障状态信息，分析故障原因，解决网络故障 。 3、监控、记录网络性能变化；根据网络需求适当调 整网络，以提高网络性能。 4、监控、记录网络受到安全威胁的情况，检查网络 可能存在的安全漏洞或隐患，并通过访问控制等手 段对网络的薄弱环节进行改善。Page 7Page 8Page 9Enter your title here. It is also possible to have 2 lines of text. This is a dummy text.
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