Nagios is a popular open-source monitoring system that helps in detecting errors and irregularities in a network infrastructure. This tutorial will guide you through the process of installing Nagios on Fedora CoreOS Latest.
Before you begin, make sure that your system meets the following requirements:
Run the following command to install the required packages:
sudo dnf install httpd php php-cli gcc glibc glibc-common gd gd-devel net-snmp openssl-devel wget unzip
Download the latest version of Nagios from https://www.nagios.org/downloads/nagios-core/. Run the following command to download it:
sudo wget -O nagios.tar.gz https://github.com/NagiosEnterprises/nagioscore/archive/nagios-4.4.6.tar.gz
Extract the Nagios archive using the following command:
sudo tar -xvf nagios.tar.gz
cd nagioscore-nagios-4.4.6/
Run the following commands to compile and install Nagios:
sudo ./configure --with-httpd-conf=/etc/httpd/conf.d/
sudo make all
sudo make install
sudo make install-init
sudo make install-commandmode
sudo make install-config
Run the following command to create a Nagios user and group:
sudo useradd nagios
sudo groupadd nagcmd
sudo usermod -a -G nagcmd nagios
Download the latest version of Nagios plugins from https://nagios-plugins.org/download/. Run the following commands to download and install the plugins:
sudo wget https://nagios-plugins.org/download/nagios-plugins-2.3.3.tar.gz
sudo tar -xvf nagios-plugins-2.3.3.tar.gz
cd nagios-plugins-2.3.3/
sudo ./configure --with-nagios-user=nagios --with-nagios-group=nagios
sudo make
sudo make install
Run the following command to configure Nagios:
sudo vi /usr/local/nagios/etc/nagios.cfg
Uncomment the following lines and set the values as shown below:
#cfg_dir=/usr/local/nagios/etc/servers
#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
Restart the Nagios service with the following command:
sudo systemctl restart nagios
Open your web browser and enter the IP address or hostname of your server followed by /nagios/ to access the Nagios web interface:
http://[SERVER_IP]/nagios/
You will be prompted for a username and password. Enter the default username (nagiosadmin) and password (nagios) to log in.
Congratulations! You have successfully installed Nagios on Fedora CoreOS Latest. You can now configure Nagios to monitor your network infrastructure.
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