Are you facing Nagios web interface not loading?
This guide if for you.
Nagios web interface not loading error occurs after an upgrade or during installation.
Here at Ibmi Media, as part of our Server Management Services, we regularly help our Customers to fix Nagios related errors.
In this context, we shall look into steps to solve Nagios web interface not working error.
What triggers Nagios web interface not loading issue?
This error commonly occurs when we upgrade the Nagios and PHP is not updated in the server.
It can also occur if the web interface not configured properly.
If there is a problem with web server configuration Nagios GUI fails to load.
Different methods to fix Nagios web interface not loading issue?
To fix this error, apply any of the tips suggested below.
1. Update PHP version
This error commonly occurs when we upgrade to the newer version of Nagios. On upgrading to the latest version the requirement for the version needs to be met.
One of the major reason are the PHP version in the server is not up to date.
Thus, on checking the server found that the PHP was not up-to-date. Thus, we update the PHP to the latest version. Upgrading the PHP version in the server might affect the site running with a lower PHP version. If websites are running on the server.
2. Web interface not configured properly in Nagios
This can also occur after Nagios installation. In those cases, the web interface is not installed properly.
Thus, ensure that the web interface is installed in the server.
You can install the web interface using the command
sudo make install-webconf
Then we check the nagios.conf file is present in the Apache folder. In the Ubuntu server, the configuration file needs to be present in the sites-enabled folder. Thus, we found the file was not present in the location.
Thus, from the installation folder, we run the command to move the file to the correct location.
sudo /usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/sites-enabled/nagios.conf
Finally, we restart the Apache server using the command
service apache2 restart
After restarting the service the Nagios web interface starts to load.
3. Web server configuration in Nagios
The Nagios interface will fail to load if there is an issue with the webserver. Check the configuration using the command:
For Nginx server, we use the command;
From the output, the issue will be known and then we can resolve the error in the webserver and make the Nagios web interface to load.