Install Icinga and Icinga Web Monitoring Tool on Ubuntu
For Download Icinga Repositories : - https://icinga.com/download/
Login to root user:
$ su
Enter the command to install dbconfig-common package:
# apt-get install dbconfig-common
Add Icinga Repository
If ‘add-apt-repository’ command doesn’t work, install the following package:
# apt-get install python-software-properties
Add Icinga repository with command on Ubuntu:
# add-apt-repository ppa:formorer/icinga
Update sources list:
# apt-get update
Now install Icinga and its dependencies with following command:
# apt-get install icinga icinga-idoutils mysql-server libdbd-mysql mysql-client
Configure idoutils
Create a file /etc/icinga/modules/idoutils.cfg
sudo nano /etc/icinga/modules/idoutils.cfg
Add the following lines:
define module{
module_name idomod
module_type neb
path /usr/lib/icinga/idomod.so
args config_file=/etc/icinga/idomod.cfg
}
Create symbolic links with following command:
# ln -s /usr/lib/icinga/idomod.so /usr/sbin/
Configure ido2db
Open the file /etc/default/icinga:
# nano /etc/default/icinga
Find the line:
# start ido2db daemon (no/yes)
IDO2DB=no
Change the value ‘no’ to ‘yes’:
# start ido2db daemon (no/yes)
IDO2DB=yes
Now start ido2db and restart icinga services:
# /etc/init.d/ido2db start
# /etc/init.d/icinga restart
Monitor Remote Hosts with Icinga
Install nrpe and nagios plugins in your remote system.To install nrpe & nagios-plugins, enter the command:
$ sudo apt-get install openssl nagios-nrpe-server nagios-plugins nagios-plugins-basic nagios-plugins-standard
Now open /etc/nagios/nrpe.cfg file:
$ sudo nano /etc/nagios/nrpe.cfg
Find the line:
# server_address=127.0.0.1
Uncomment and add your Icinga server IP address as shown below:
server_address=127.0.0.1 192.168.1.201
Here 192.168.1.201 is my Icinga server IP address. Restart nrpe to save changes:
$ sudo /etc/init.d/nagios-nrpe-server restart
Add Remote Hosts to Icinga Server
Now go back to Icinga server side and do the following steps. Open the file /etc/icinga/objects/localhost_icinga.cfg:
# nano /etc/icinga/objects/localhost_icinga.cfg
Add the following lines next to the localhost template:
define host{
use generic-host ; Name of host template$
host_name ubuntu
alias ubuntu
address 192.168.1.100
}
Here 192.168.1.100 is my local ubuntu 18.04 desktop.
Add Services for Remote Hosts in Icinga Server
To add a service scroll down further in icinga configuration file. You will find a service templates as shown below. Just add your remote hostname to be monitored separated with comma(,).
define service{
use generic-service ; Name of servi$
host_name localhost
service_description Disk Space
check_command check_all_disks!20%!10%
}
Now restart icinga services:
# /etc/init.d/icinga restart
