NConf is a Web tool for configuring the Nagios monitoring software. It differs from similar tools by offering enterprise-class features like templates, dependencies, and the ability to configure a large-scale, distributed Nagios server topology. It lets you effortlessly maintain a distributed Nagios topology. It has a user-friendly GUI. It features host and service templates, a graphical dependency viewer, multiple authentication modes, a Nagios configuration importer, a CSV file importer, and a Perl database API. The data schema is customizable and expandable.
CoffeeSaint is a Java application that shows the status of Nagios (version 1 up to 3 and the newer XI) on a screen. It can, if there are no errors, display a Webcam feed. If an error status occurs, it can play a sound. One can configure it to display certain errors/warnings always on top. It is remotely configurable via a built-in Web interface.