一、安装sendmail组件
首先要确保sendmail相关组件的完整安装，我们可以使用如下的命令来完成sendmail的安装：
# yum install -y sendmail*
然后重新启动sendmail服务：
# service sendmail restart
二、邮件报警的配置
下面是我的邮件报警的配置过程：
1、开启系统自带的sendmail邮件系统
#service sendmail start
测试发送邮件：
echo “test” | mail wuwenhui@*******.cn
我系统在关掉iptables和selinux前提下是正常的
2、配置nagios中报警邮箱
vi /var/www/html/nagios/etc/objects/contacts.cfg
define contact{
contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user
email nagios@localhost ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
}修改nagios@localhost为接收邮件地址，如果有多个可以用逗号隔开！
3、设置报警方式
#vi /var/www/html/nagios/etc/objects/templates.cfg
define contact{
name generic-contact ; The name of this contact template
service_notification_period 24×7 ; service notifications can be sent anytime
host_notification_period 24×7 ; 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!
}这两个 notify-service-by-email 和 notify-host-by-email 是在commands.cfg那里定义的，看看是怎么定义的：
#vi /var/www/html/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 $SERVICESTATE$ **” $CONTACTEMAIL$
}这里已经默认配置好，我们不用修改直接调用就是了
4、最后重启服务
#service nagios restart
然后随便关掉一些服务测试一下效果！
原创文章，作者：wwh，如若转载，请注明出处：https://www.wuwenhui.cn/4136.html
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