In order to work with PHP, we need to restart the Apache web server by using the below command. You need to enable Apache to start on boot. If you’ve not installed Apache and PHP, please do the steps below, Nagios is useful for keeping an inventory of your servers and making sure that the configured critical services are up and running.īefore you proceed with Nagios installation, you must have superuser privileges on the CentOS 7 server that will run Nagios and you need to install Apache and PHP. It is configured to send alerts when critical services fail and recover. Nagios overviewĪs you know, Nagios is a one-stop monitoring service for entire IT infrastructures (applications, services, operating systems, network protocols, system metrics and infrastructure components). This article describes the installation of Nagios 4 and its basic configuration so to monitor host resources via a web interface.
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