How Nagios Core Works


IT staff configure Nagios to monitor critical IT infrastructure components, including system metrics, network protocols, applications, services, servers, and network infrastructure.


Nagios sends alerts when critical infrastructure components fail and recover, providing administrators with notice of important events. Alerts can be delivered via email, SMS, or custom script.


IT staff can acknowledge alerts and begin resolving outages and investigating security alerts immediately. Alerts can be escalated to different groups if alerts are not acknowledged in a timely manner.


Reports provide a historical record of outages, events, notifications, and alert response for later review. Availability reports help ensure your SLAs are being met.


Scheduled downtime prevents alerts during scheduled maintenance and upgrade windows.


Trending and capacity planning graphs and reports allow you to identify necessary infrastructure upgrades before failures occur.



Nagios is an integral part of our infrastructure. By notifying us immediately of a service outage, we are able to rectify the issue before our customers and end users experience any problems.
Jared Bird Network Security Administrator
With Nagios we were able to consolidate multiple commercial monitoring solutions into one, and at the same time reduce our maintenance costs.
Michael Niedermann IT Manager
Nagios has been monitoring our systems for the last couple of years and the amount of flexibility that it has given us is amazing.
Systems Administrator Gulf Research Center

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