shell练习题-设计监控服务器是否宕机脚本

怼烎@ 2022-05-22 03:04 245阅读 0赞

**1.要求：**

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   <td><span style="font-family:SimSun;font-size:18px;">1.设计一个每隔30秒执行一次的死循环脚本，<br>2.监控远程的机器(假设有五十台服务器，IP为192.168.1.1-50)的存活状态，<br>3.将宕机的服务器IP，发一封邮件给你自己。<br></span></td> 
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**2.脚本答案：**

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   <td><span style="font-family:SimSun;font-size:18px;">[root@liang ~]# cat /scritp/2018-06-13/monitoring.sh &nbsp; &nbsp; &nbsp; &nbsp;<br>#!/bin/bash<br>Ip=192.168.1.<br>File=/test1/ip.txt<br>while true<br>do<br>&nbsp; &nbsp; &nbsp; &nbsp; for i in `seq 50`<br>&nbsp; &nbsp; &nbsp; &nbsp; do<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ping -c 2 ${Ip}${i} &gt;/dev/null 2&gt;&amp;1<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if [ $? -eq 1 ];then<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; echo "${Ip}${i}" &gt;&gt; ${File}<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; fi&nbsp;<br>&nbsp; &nbsp; &nbsp; &nbsp; done<br>&nbsp; &nbsp; &nbsp; &nbsp; if [ ! -z "$File" ];then<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; mail -s "error:ping Ip" lilde123456@163.com &lt; ${File}<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &gt;${File}<br>&nbsp; &nbsp; &nbsp; &nbsp; fi<br>&nbsp; &nbsp; &nbsp; &nbsp; sleep 30<br>done</span></td> 
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**3.邮件服务器配置（我这里使用的是网易邮箱）**

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   <td><p><span style="line-height:normal;"><span style="font-family:SimSun;font-size:18px;">1.配置</span></span></p><p><span style="line-height:normal;"><span style="font-family:SimSun;font-size:18px;">[root@liang test]# tail -1 /etc/mail.rc&nbsp;</span></span></p><span style="line-height:normal;"><span style="font-family:SimSun;font-size:18px;">set from=lilde123456@163.com &nbsp;smtp=smtp.163.com&nbsp;<br>smtp-auth-user=lilde123456 smtp-auth-password=密码 stmp-auth=login<br><br>2.发送邮件写法：<br>mail -s “标题” <span style="text-align:left;background-color:rgb(255,255,255);">lilde123456@163.com</span><span style="text-align:left;background-color:rgb(255,255,255);">&nbsp;</span>&nbsp;&lt;/etc/hosts<br>echo “正文”|mail -s “标题” <span style="text-align:left;background-color:rgb(255,255,255);">lilde123456@163.com</span><span style="text-align:left;background-color:rgb(255,255,255);">&nbsp;</span></span></span></td> 
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**4.测试（写测试192.168.1.1-5的）**

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   <td><p><span style="font-family:SimSun;font-size:18px;">1.打开两个终端，一个执行脚本，一个查看/test1/ip.txt文件。</span></p><p><span style="font-family:SimSun;font-size:18px;">[root@liang ~]# bash /scritp/2018-06-13/monitoring.sh&nbsp;</span></p><p><span style="font-family:SimSun;font-size:18px;"><br></span></p><p><span style="font-family:SimSun;font-size:18px;">[root@liang ~]# tailf /test1/ip.txt&nbsp;<br></span></p><p><img src="https://img-blog.csdn.net/20180613170831653" alt=""><br></p></td> 
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