Knowledge Base

Answers and Guides

Where to Start on nagios.org to Get Nagios

Start with the "Get Started Free" entry point on nagios.org if you want the open source offering — that is the site's own call to…

What Can Nagios Monitor Across Servers, Networks, Applications, and Cloud?

Nagios monitors device health, service availability, and performance across servers, networks, databases, applications, and cloud…

Nagios Core vs Nagios XI: Which Edition Fits Your Monitoring Needs?

Nagios Core is the free, open source, GPL-licensed monitoring engine at the center of the Nagios project; Nagios XI is the commer…

How Nagios Core Works for Network and Server Monitoring

Nagios Core is a free, open source, self-hosted monitoring engine that checks whether your hosts and services are up and performi…

What Is Nagios and What Does It Do?

Nagios is a free, open-source IT monitoring platform, built around Nagios Core and licensed under the GPL. It watches servers, ne…

What Are Open-Source UI Element Libraries and How Do They Differ From UI Frameworks?

An open-source UI element library is a collection of individual, ready-made interface pieces—buttons, cards, inputs, toggles, loa…