公司没有专门的系统管理员,因此一些服务器安全措施也得我们程序员自己去做,对Linux服务器了解不是很多,查了些资料,下面是自己写的几个简易的服务器监控脚本,希望路过的仙人指点指点,进一步修正完善!
1.服务器登陆用户监控,登陆用户超过两个时发邮件通知,使用139邮箱接收,方便短信通知。
Bash代码:
- #!/bin/bash
- IP=`ifconfig eth0 | grep "inet addr"|awk '{print $2}'|cut -f 2 -d ":"`
- users=`uptime|awk '{print $6}'`
- #if[$users -ge 2]
- if [ $users -ge 2 ]
- then
- echo "$IP server login users is more than 2"|mail -s "warning:" ****@139.com
- fi
2.MySQL运行状态监控,没有正常运行则重新启动服务,重启失败发送邮件通知
Bash代码:
- #! /bin/bash
- #MySQL running这个字符串根据数据库版本正常运行时status显示的信息确定
- /sbin/service mysql status | grep "MySQL running" > /dev/null
- if [ $? -eq 0 ]
- then
- #状态正常检查3306端口是否正常监听
- netstat -ntp | grep 3306 > /dev/null
- if [ $? -ne 0 ]
- then
- /sbin/service mysql restart
- sleep 3
- /sbin/service mysql status | grep " MySQL running" > /dev/null
- if [ $? -ne 0 ]
- then
- echo "mysql service has stoped ,Automatic startup failure, please start it manually!" | mail -s "mysql is not running" ***@139.com
- fi
- fi
- else
- /sbin/service mysql start
- sleep 2;
- /sbin/service mysql status | grep "MySQL running" > /dev/null
- if [ $? -ne 0 ]
- then
- echo "mysql service has stoped ,Automatic startup failure, please start it manually!" | mail -s "mysql is not running" ***@139.com
- fi
- fi
3.硬盘空间使用状况监控,当有分区空间使用超过80%时,邮件通知
Bash代码:
- #!/bin/bash
- #set -x
- checkLog=/var/log/check-space.log
- fullFlag=0
- df -h > $checkLog
- percent_list=$(cat $checkLog | awk '{print $5}' | grep -Eo "[0-9]+")
- for num in $percent_list
- do
- if [ $num -ge 80 ]; then
- fullFlag=1
- fi
- done
- if [ $fullFlag -eq 1 ]; then
- echo "$(hostname): used disk space is more than 80%"|mail -s "warning:disk space is not enough" ***@139.com
- fi
ps:邮件通过配置mail使用外部SMTP服务器发送,这里使用163的SMTP服务器。vi 编辑/etc/mail.rc,在开始部分加入下面的代码,:wq退出保存即可!
Xml代码:
- set from=test@163.com
- set smtpsmtp=smtp.163.com
- set smtp-auth-user=test
- set smtp-auth-password=test123