Linux监控web服务并邮件提醒

绝地灬酷狼 2022-05-01 13:46 270阅读 0赞

> 转载请标明出处：  
> 原文首发于： [http://www.zhangruibin.com][http_www.zhangruibin.com]  
> 本文出自 [RebornChang的博客][http_www.zhangruibin.com]

# 监控web服务并邮件提醒 #

首先说下在基于Linux操作系统的邮件发送。

# Linux操作系统的邮件发送 #

简单的说使用mailX：

## 1.安装mailx ##

yum  install  mailx -y

## 2.测试基本邮件发送 ##

命令行: mail -s "theme" emailAddress,回车后输入内容按Ctrl+D发送邮件.
    管道符: echo "mail main content" | mail -s "theme" emailAddress
    文件内容作为邮件内容: mail -s "theme" emailAddress < /tmp/t.txt

具体的关于sendEmail的设置之类的这里就不说了，可以参考下面两个博文：  
[https://www.cnblogs.com/liutao97/p/8387244.html][https_www.cnblogs.com_liutao97_p_8387244.html]  
[https://blog.csdn.net/lyf844692713/article/details/81479066][https_blog.csdn.net_lyf844692713_article_details_81479066]

## 3.编写要进行监控的文件url ##

vim url

输入要进行监控的网址，例如博主要监控的是两个域名，所以文件中的内容是：

www.zhangruibin.com www.92cnb.com

## [4.编写监控脚本monitor.sh][4._monitor.sh] ##

本脚本采摘自网络，部分自己修改(面向百度编程)，如有侵权请告知：

#!/bin/bash
      #监控web服务并邮件提醒
      while true
      do
          Mail="itbin@foxmail.com"
          FailCount=0
          Retval=0
          GetUrlStatus() {
                      for ((i=1;i<=3;i++))     #使用i++判断访问次数，如果wget两次超时则判断网站异常
                      do
                              wget -T 3 --tries=1 --spider ${1} >/dev/null 2>&1
                              #-T超时时间，--tries尝试1次，--spider蜘蛛
                              [ $? -ne 0 ] && let FailCount+=1;    #访问超时时，$?不等于0，则FailCount加1
                      done
                      Date=`date +%F" "%H:%M`
                      if [ $FailCount -gt 1 ];then
                              Retval=1
                              echo "check fail!!!,sendmail....."
                              ##　使用mutt
                              #echo -e "Date : $Date\nProblem : $url is not running." | mutt -s "web server Monitor" $Mail
                              echo "Date : $Date \n Problem :$url服务挂了" | mailx -v -s "服务监控提醒"  $Mail
      
                      else
                              Retval=0
                              echo "Date : $Date  $url is running."
                      fi
                      return $Retval        #如果返回值为0，就正常退出循环，不为0则继续循环
           }
           for url in `cat url | sed '/^#/d'`
           do
              #GetUrlStatus $url && echo yes || echo no
              GetUrlStatus $url
          done
          sleep 600           #死循环，设置每600s运行一次
      done

## 5.启动脚本，将echo输出至指定文件monitor.log ##

nohup sh monitor.sh >>monitor.log &

## 6.退出系统之后重新登录查看脚本运行状态 ##

ps -ef|grep monitor
    
    结果：
    root       454   328  0 03:00 pts/2    00:00:00 grep --color=auto monitor
    root     27535     1  0 Jun10 ?        00:00:00 sh monitor.sh

## 7.查看monitor.log及邮箱验证 ##

cat monitor.log
    结果：
    Date : 2019-06-10 21:47  www.zhangruibin.com is running.
    Date : 2019-06-10 21:47  www.92cnb.com is running.
    Date : 2019-06-10 21:57  www.zhangruibin.com is running.
    Date : 2019-06-10 21:57  www.92cnb.com is running.
    Date : 2019-06-10 22:07  www.zhangruibin.com is running.
    Date : 2019-06-10 22:07  www.92cnb.com is running.
    Date : 2019-06-10 22:17  www.zhangruibin.com is running.
    Date : 2019-06-10 22:17  www.92cnb.com is running.
    Date : 2019-06-10 22:27  www.zhangruibin.com is running.
    Date : 2019-06-10 22:27  www.92cnb.com is running.
    Date : 2019-06-10 22:37  www.zhangruibin.com is running.
    Date : 2019-06-10 22:37  www.92cnb.com is running.
    Date : 2019-06-10 22:47  www.zhangruibin.com is running.
    Date : 2019-06-10 22:47  www.92cnb.com is running.
    Date : 2019-06-10 22:57  www.zhangruibin.com is running.
    Date : 2019-06-10 22:57  www.92cnb.com is running.
    check fail!!!,sendmail.....
    itbin@foxmail.com... Connecting to [127.0.0.1] via relay...
    220 zhrb.localdomain ESMTP Postfix
    >>> EHLO zhrb.localdomain
    250-zhrb.localdomain
    250-PIPELINING
    250-SIZE 10240000
    250-VRFY
    250-ETRN
    250-ENHANCEDSTATUSCODES
    250-8BITMIME
    250 DSN
    >>> MAIL From:<root@zhrb.localdomain> SIZE=304
    250 2.1.0 Ok
    >>> RCPT To:<itbin@foxmail.com>
    >>> DATA
    250 2.1.5 Ok
    354 End data with <CR><LF>.<CR><LF>
    >>> .
    250 2.0.0 Ok: queued as 5C4001D6E
    itbin@foxmail.com... Sent (Ok: queued as 5C4001D6E)
    Closing connection to [127.0.0.1]
    >>> QUIT
    221 2.0.0 Bye

并且邮箱中收到了邮件，验证成功。

Over!

[http_www.zhangruibin.com]: http://www.zhangruibin.com
[https_www.cnblogs.com_liutao97_p_8387244.html]: https://www.cnblogs.com/liutao97/p/8387244.html
[https_blog.csdn.net_lyf844692713_article_details_81479066]: https://blog.csdn.net/lyf844692713/article/details/81479066
[4._monitor.sh]: http://4.xn--monitor-nu9k155kpmhx08b1zu05f.sh