配置WWW服务器是UNIX操作系统平台的重要工作之一，而Apache是目前应用最为广泛的Web服务器产品之一，(59)是Apache的主要配置文件。

 URL根目录与服务器本地目录之间的映射关系是通过指令(60)设定；指令 ServerAdmin的作用是(61)；而设置index.html或default.html为目录下默认文档的指令是(62)；如果允许以“http://www.xxx.edu.cn/～username”方式访问用户的个人主页，必须通过(63)指令设置个人主页文档所在的目录。

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The Simple Network Management Protocol (SNMP)is an(71)protocol that facilitates the exchange of management information between(72). It is part of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite. SNMP enables network(73)to manage network performance, find and sole network problems, and plan for(74). An SNMP-man-aged network consists of three key components: managed devices,(75), and network-management systems.

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