1. 安装：sudo apt-get install monit

  2. 配置文件：sudo vim /etc/monit/monitrc
    主要配置下面选项：
    SMTP服务器用于外发邮件，这里使用的是AWS Simple Mail Service
    set mailserver email-smtp.us-west-xx.amazonaws.com port 587
    username "AKIAJxxxxxxxxxxxxxxxx" password "Axxxxxxxxxxxxxxxxxxxxxxxxxxx"
    using tlsv1
    with timeout 30 seconds

收集人
#email address which will receive monit alerts
set alert [email protected]

如果不需要monit每次reload都给自己发邮件
set alert [email protected] not {instance}

邮件格式
set mail-format {
from: [email protected]
subject: XXX alert -- $EVENT $SERVICE
message: $EVENT Service $SERVICE
Date: $DATE
Action: $ACTION
Host: XXX Server
Description: $DESCRIPTION

        Monitor System

}

启用http
Enable httpd: set httpd port 2812
#Then: sudo monit reload
#Then: localhost:2812

这份配置文件已经包含很多监控选项，可以根据需求设定

  1. 启动monit：sudo monit

  2. 其它常用命令
    sudo monit status
    sudo service monit status
    sudo monit reload = sudo service monit restart

Check log:
sudo tail -f /var/log/monit.log
grep sshd /var/log/monit.log

Check syntax:
sudo monit -t

  1. 如果需要定制自己的监控项目，可以把配置文件保存在这里：/etc/monit/conf.d/
    • 监控磁盘剩余空间报警
      sudo vim /etc/monit/conf.d/storagespace

check filesystem Media with path /dev/sdb1df
if space usage > 90% then alert

  • 监控挂载的外部文件夹
    check filesystem Compal-NAS-Croissant with path /test/ABC
    if changed fsflags then alert

-监控网络连接
check host WWW with address 192.20.1.40
if failed ping then alert