Nagios monitoring using SendMail to send mail alerts using a third-party SMTP service

Use the SendMail service that comes with the CentOS system as a client to send mail alerts using a third-party SMTP service.

This feature is implemented on the basis of the normal installation and operation of the Nagios service, so the basic Nagios operating environment should be installed first, this can refer to my related blog post.

1. Software Inspection and Installation

#rpm-Q SendMail

Does not exist how to install

#yum-y Install SendMail

2. Stop SendMail Service

There is no need for sendmail to run as a mail server, so close the SendMail service.

#service SendMail Stop

3. Configuring the SendMail Service

Configure mailbox authentication information for sending messages

Vi/etc/mail.rc

---Add the following content---

Set [email protected]

Set smtp=smtp.xxx.com

Set Smtp-auth-user=mailname

Set SMTP-AUTH-PASSWORD=YOURPASSWD

Set Smtp-auth=login

4. Test the Send mail feature

Format: echo "Mail Content" | Mail-s "Mail Header" Destination email address

echo "Hello word" | Mail-s "Mail title" [Email protected]

5. Configure Nagios Mail Send command

Modifying the nagios command configuration file

#vim nagios/etc/object/command.cfg

#notify definition of the-host-by-email command

Define Command{

#命令名称, which defines a command that sends a message when a host exception is defined.

Command_name Notify-host-by-email

#命令具体的执行方式.

command_line/usr/bin/printf "%b" "* * * * Nagios *****\n\nnotification Type: $NOTIFICATIONTYPE $\nhost: $HOSTNAME $\nstat E: $HOSTSTATE $\naddress: $HOSTADDRESS $\ninfo: $HOSTOUTPUT $\n\ndate/time: $LONGDATETIME $\n "| /bin/mail -S "* * $NOTIFICATIONTYPE $ Host Alert: $HOSTNAME $ is $HOSTSTATE $ * *" $CONTACTEMAIL $

}

#notify definition of the-service-by-email command

Define Command{

#命令名称, which defines a command to send a message when a service exception is defined

Command_name Notify-service-by-email

command_line/usr/bin/printf "%b" "* * * * Nagios *****\n\nnotification Type: $NOTIFICATIONTYPE $\n\nservice: $SERVICEDES C$\nhost: $HOSTALIAS $\naddress: $HOSTADDRESS $\nstate: $SERVICESTATE $\n\ndate/time: $LONGDATETIME $\n\nadditional Info:\n\n$serviceoutput$\n "| /bin/mail -S "* * $NOTIFICATIONTYPE $ Service Alert: $HOSTALIAS $/$SERVICEDESC $ is $SERVICESTATE $ * *" $ contactemail$

}

Note: The command is on one line, where the layout problem is divided into multiple lines.

It then modifies the alarm mechanism of the hosts and services defined in Nagios, enabling Nagios to use automatic mail alerting.

Acknowledgement: I refer to a number of articles after summing up, in this thank you network share!

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Nagios monitoring using SendMail to send mail alerts using a third-party SMTP service