用shell和php脚本实现定时检测服务器情况

By admin

July 22, 2011 - 2 minutes read - 217 words

实现原理,利用 cron来定时执行一个shell脚本,如果发现服务器不通或者上次故障后恢复正常,则发送邮件.否则不用发送邮件. 目前此Shell在FreeBSD和Linux下均可以正常运行.

ping.sh

#!/bin/bash
if [ $# -ne 1 ]
then
echo 'must have one param,must be ip address format!'
exit
fi

ip=$1
tmpfile=/tmp/$ip.txt
if [ -f $tmpfile ]; then
lastmsg=`cat $tmpfile`
else
lastmsg='YES'
fi

ret=`ping -c 3 $ip | grep ttl  | wc -l`
if [ $ret -lt 2 ]; then
echo 'NO' > $tmpfile
/usr/local/bin/php /data/haohtml.com/www/ping.php $ip  > /dev/null 2>&1
elif [ $lastmsg = 'NO' ]; then
echo 'YES' > $tmpfile
/usr/local/bin/php /data/haohtml.com/www/ping.php $ip 1 > /dev/null 2>&1
fi

ping.php

<?php
error_reporting(7);

/* process calling arguments */
$parms = $_SERVER["argv"];
array_shift($parms);

if (!sizeof($parms)) {
	exit();
}

//port num
$ip = $parms[0];
$status = $parms[1];

if ($status == 1) {
	//恢复正常
	$mail_msg = '恢复正常!';
} else {
	$mail_msg = '无法ping通,请检查是否发生宕机情况!';
}

$mail_subject= "服务器状态检测" . $ip;//邮件主题
$mail_body='检测时间: '.date('Y-m-d H:i:s',time())."<br />域名/IP:$ip <br />状态:$mail_msg";

//发送邮件
send_mail($mail_subject, $mail_body);
/**====================================
 * 邮件发送函数
 * @name send_mail
 * @param string $mail_subject 邮件主题
 * @param string $mail_body 邮件内容
 * @date 2011-07-22
 * @author cfanbo
 **/================================
function send_mail($mailsubject, $mailbody) {
	##########################################
	$smtpserver = "smtp.sina.com";
	$smtpserverport = 25;
	$smtpusermail = "[email protected]";
	$smtpuser = "ingli";
	$smtppass = "123456";
	$mailtype = "HTML";//邮件格式（HTML/TXT）,TXT为文本邮件
	##########################################
	$email="[email protected]";	//接收信息的邮件
	include 'sendmail.class.php';
        $smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.
	//$smtp->debug = TRUE;//是否显示发送的调试信息
	$smtp->sendmail($email, $smtpusermail, $mailsubject, $mailbody, $mailtype);

	//echo 'send OK';
}?>

邮件发送类:sendmail.class.php

在/etc/crontab里添加一行

*/5 * * * * root /data/ping.sh 242.28.177.171 > /dev/null 2>&1

用来每5分钟对服务器进行一次检测.

shell