The Howdy Glossary

Nagios Core is a free, open-source monitoring tool that tracks the performance and status of network devices. The software's primary function is to monitor hosts and services on your network, alerting you when things go wrong and when they get better. With Nagios Core, you can detect outages before your users do, ensuring that your organization's operations remain uninterrupted. The tool provides detailed information regarding problems (including logs), allowing administrators to investigate issues thoroughly. By implementing Nagios Core as part of a comprehensive IT infrastructure management strategy, proactive planning can replace reactive troubleshooting — saving time and reducing costs associated with downtime.