Some background information on Nagios and Icinga. Nagios – whose name is a recursive acronym (“Nagios Ain’t Gonna Insist On Sainthood”) ironically refers to the original name NetSaint changed to avoid trademark troubles – is among the most popular open source network management tools and application. Nagios has been designed and developed by Ethan Galstad over the last 11 years. Recently Ethan started to empower other developers, a transition that is slowly happening. Icinga is a Nagios fork born over one year ago, which aim was and is to make it a community-led project, probably not devoid of business logic.