In this recipe, you'll learn how to install the NDOUtils extension to Nagios Core in order to have all of Nagios Core's configuration and data written into a MySQL database. This allows us to easily develop custom reports and interfaces for Nagios Core data with languages such as Perl and PHP and their standard interfaces for the popular MySQL server, as opposed to interacting with Nagios Core's own logs or data format. Some plugins such as NagVis use this format to read information about Nagios Core configuration and objects.
You will need a Nagios Core server version 4.0 or later. NDOUtils will probably still get installed and work on older versions of Nagios Core, but the installation process is slightly different; refer to the
INSTALL file included in the NDO source for more information on this.
Nagios Core uses its event broker functionality to write information to the socket for the MySQL database to pick up. You will need...