Configure sound alert for Nagios Core

In this tutorial you will learn about adding sound alert to Nagios Core. Nagios is a monitoring system that can help you to predict problems on your servers, switches, applications and services.

Step 1: Install dependencies

Install required packages.

yum install alsa alsa-base alsa-utils -y

Step 2: Configure commands.cfg

Edit the commands.cfg then add the command for sound alert script.

vi /usr/local/nagios/etc/objects/commands.cfg

define command {  

command_name    play_siren  

command_line    /bin/bash /usr/local/nagios/

          etc/objects/play_siren.sh  

}

[Esc] :wq – to save it then quit

Step 3: Create a script for the sound alert

Put the .wav file into /usr/local/nagios/share/media

vi /usr/local/nagios/etc/objects/play_siren.sh

# !/bin/bash

/usr/bin/aplay -q /usr/local/share/nagios/share/

         media/siren.wav

[Esc] :wq

Set the ownership of the file to nagios.

chown nagios.nagios /usr/local/nagios/etc

           /objects/play_siren.sh

cd /usr/local/nagios/etc/objects 

chmod a+x play_siren.sh

Step 4: Configure contacts.cfg

Edit the contacts.cfg and add play_siren as notification commands under the nagiosadmin.

vi contacts.cfg

service_notification_options w,u,c,r,s,f

host_notification_options d,u,r,f,s

service_notification_commands play_siren

host_notification_commands play_siren

[Esc] :wq

Add the contact group for each services and into

the host in localhost.cfg.

vi localhost.cfg

contact_groups admins

Last uncomment and edit in cgi.cfg and change the .wav file to desired file to use.

vi /usr/local/nagios/etc/cgi.cfg

host_unreachable_sound=alert.wav

host_down_sound=alert.wav

service_critical_sound=alert.wav

service_warning_sound=alert.wav

service_unknown_sound=alert.wav

[Esc] :wq

Restart apache and nagios.

service httpd restart

service nagios restart