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show">|</span><a href="javascript:;" onclick="readmode($('thread_subject').innerHTML, 585);" class="show">阅读模式</a> </div> </div> </div><div class="pct"><style type="text/css">.pcb{margin-right:0}</style><div class="pcb"> <div class="typeoption"> <table summary="分类信息" cellpadding="0" cellspacing="0" class="cgtl mbm"> <caption>Linux</caption> <tbody><tr> <th>Linux 私房菜:</th> <td>基础篇 » 五.Linux系统管理员 » 20.认识与分析登录档 </td> </tr> </tbody> </table> </div> <div class="t_fsz"><table cellspacing="0" cellpadding="0"> <tr> <td class="t_f" id="postmessage_585"> <font size="4"><strong>重点回顾</strong></font><br /> <ul><li>登录文件可以记录一个事件的何时、何地、何人、何事等四大资讯，故系统有问题时务必查询登录文件；<li>系统的登录文件默认都集中放置到 /var/log/ 目录内，其中又以 messages 记录的资讯最多！<li>登录文件记录的主要服务与程序为： syslogd, klogd, log<li>syslogd 的配置档在 /etc/syslog.conf ，内容语法为：『 服务.等级 记载装置或文件』<li>syslogd 本身有提供登录文件服务器的功能，透过修改 /etc/sysconfig/syslog 内容即可达成；<li>logrotate 程序利用 crontab 来进行登录文件的轮替功能；<li>logrotate 的配置档为 /etc/logrotate.conf ，而额外的配置则可写入 /etc/logrotate.d/* 内；<li>logwatch 为 CentOS 5 默认提供的一个登录文件分析软件。<br /> </ul><br /> <br /> <br /> <font size="4"><strong>本章习题</strong></font><br /> ( 要看答案请将鼠标移动到『答：』底下的空白处，按下左键圈选空白处即可察看 )<br /> <font size="3"><strong>（1）实作题</strong></font><br /> 请在你的 CentOS 5.x 上面，依照鸟哥提供的 logfile.sh 去安装，并将结果取出分析看看。<br /> <br /> <br /> <font size="3"><strong>（2）简答题部分</strong></font><br /> <ul><li>syslogd 可以作为登录文件服务器，请以 man page 的方式配合 network 关键字，查出 syslogd 需要加上什么选项就能够成为登录文件服务器？[jzsjiale_fold=答案]透过 man syslogd ，查询到 -r 的选项。[/jzsjiale_fold]<li>如果你想要将 auth 这个服务的结果中，只要信息等级高於 warn 就给予发送 email 到 root 的信箱，该如何处理？[jzsjiale_fold=答案]利用 vim 去编辑 /etc/syslog.conf 文件，内容为<br /> auth.warn root[/jzsjiale_fold]<br /> </ul><br /> <ul><li>启动系统登录资讯时，需要启动哪两个 daemon 呢？[jzsjiale_fold=答案]syslogd 记录系统软件， klogd 记录核心资讯。[/jzsjiale_fold]<li>syslogd 以及 logrotate 个别透过什么机制来运行？[jzsjiale_fold=答案]syslogd 为 stand alone daemon 的机制； logrotate 则是透过 crontab 来运行的！只是个命令而已。[/jzsjiale_fold]<br /> </ul><br /> <br /> <br /> <font size="4"><strong>参考数据与延伸阅读</strong></font><br /> 注1：关於 console 的说明可以参考底下的连结：<br /> <ul><li>http://en.wikipedia.org/wiki/Console<li>http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.files/doc/aixfiles/console.htm<li>关於 logfile 也有网友提供英文版喔！我将他放置到： <a href="http://cn.linux.vbird.org//download/vbird/logfile_en.txt" target="_blank">http://cn.linux.vbird.org//download/vbird/logfile_en.txt</a><br /> </ul><br /> <br /> <br /> <br /> </td> </tr> </table> <div class="ptg mbm mtn"> <a title="职起网" href="misc.php?mod=tag&id=10" target="_blank">职起网</a>, <a title="linux" href="misc.php?mod=tag&id=34" target="_blank">linux</a>, <a title="编程" href="misc.php?mod=tag&id=38" target="_blank">编程</a></div> </div> <div id="comment_585" class="cm"> </div> <div id="post_rate_div_585"></div> </div> </div> </td></tr> <tr><td class="plc plm"> <div class="mtw mbw"> <h3 class="pbm mbm bbda">相关帖子</h3> <ul class="xl xl2 cl"><li>• <a href="thread-2494-1-1.html" title="篇3：妖股该怎么参与" target="_blank">篇3：妖股该怎么参与</a></li> <li>• <a 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