Nagios(七)——Nagios邮件,短信告警
Nagios除了监控功能很强大之外,它的报警功能也很不错。从运维的角度来讲,报警一般就是邮件和短信报警这两种方式,这次实验实现的是Nagios的邮件报警功能。
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1、 安装sendmail组件
这里要确保sendmail相关组件的完整安装,
[root@server ~]# yum install sendmail* mailx
安装完成后重启sendmail服务
[root@server ~]# service sendmail restart
Shutting down sendmail: [ OK ]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]
测试sendmail发信情况
[root@server ~]# /bin/mail -s "`date +%Y-%m-%d` Server SMS Test" 159158*****@163.com
hello
admin
.
EOT
2、 邮件报警的配置
一般而言,如果在整个系统中只有一个管理员,那么只需要在contact.cfg文件中,添加一下管理员的邮箱即可。但如果监控的内容中服务器有单独的管理员,那就需要定义多个contact(联系人),然后再通过contactgroup(联系组)对各个contact进行分组。
(1) 修改contact.cfg
[root@server ~]# vim /usr/local/nagios/etc/objects/contacts.cfg
define contact{
contact_name nagios
use generic-contact
alias Nagios
email 159158*****@163.com,159158*****@139.com //改为自己的邮箱地址即可
}
define contactgroup{
contactgroup_name admins
alias Nagios Administrators
members nagios
}
(2) 设置报警方式
[root@server ~]# vim /usr/local/nagios/etc/objects/templates.cfg
define contact{
name generic-contact ; The name of this contact template
service_notification_period 24x7 ; service notifications can be sent anytime
host_notification_period 24x7 ; host notifications can be sent anytime
service_notification_options w,u,c,r,f,s ; send notifications for all service states, flapping events, and scheduled downtime events
host_notification_options d,u,r,f,s ; send notifications for all host states, flapping events, and scheduled downtime events
service_notification_commands notify-service-by-email ; send service notifications via email
host_notification_commands notify-host-by-email ; send host notifications via email
register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE!
}
(3) 修改commands.cfg
[root@server ~]# vim /usr/local/nagios/etc/objects/commands.cfg
# 'notify-host-by-email' command definition
define command{
command_name notify-host-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}
# 'notify-service-by-email' command definition
define command{
command_name notify-service-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
}
看到这里已经默认配置好,我们不用修改直接调用就行了。
(4) 通过-v参数检查配置无误之后,重启nagios
[root@server ~]# service nagios restart
Running configuration check...done.
Stopping nagios: .done.
Starting nagios: done.
(5) 邮箱设置
这里以139邮箱为例,设置收信
点击左上角“设置”可以看到这个版块
点击“手机通知”,打开邮箱到达通知,设置接收时间段,设置完保存。
返回到这个版块,点击“白名单设置”,将服务器域名设置进白名单
(6) 测试收信情况
可以随便关闭客户机上的一个服务做测试
设置邮件到达提醒后,还可以收到告警短信,效果如下:(需要设置成长短信的形式)
可以QQ邮箱将域名设置进白名单,然后微信设置QQ邮箱推送即可(由于设置简单,这里就不演示了)效果如下:
本文标题:Nagios(七)——Nagios邮件,短信告警
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