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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

 

Nagios(七)——Nagios 邮件,短信告警

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。

 

Nagios(七)——Nagios 邮件,短信告警

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

Nagios(七)——Nagios 邮件,短信告警 

Nagios(七)——Nagios 邮件,短信告警

 

(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

Nagios(七)——Nagios 邮件,短信告警

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)

Nagios(七)——Nagios 邮件,短信告警

 PS:139邮箱的短信报警免费是好,但是有时延,这里提供另外一种方式报警——微信告警

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:

 

 

 Nagios(七)——Nagios 邮件,短信告警Nagios(七)——Nagios 邮件,短信告警

Nagios(七)——Nagios 邮件,短信告警

 

 

 

 

 


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