Generate professional SLA and availability reports that Core simply doesn't offer out of the box. How to Get Started

If you’ve spent any time in IT, you’ve heard of Nagios. It’s the "grandfather" of infrastructure monitoring. But while Nagios Core is free and open-source, it can be a beast to configure via text files.

While Nagios Core has no host limits, it requires a lot of manual Linux command-line work. Nagios XI Free gives you:

If you need to monitor more than 7 devices with a GUI and can't pay, – just be ready to edit some configuration files by hand.