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.


Comprehensive Monitoring

Core provides monitoring of all mission-critical infrastructure components including applications, services, operating systems, network protocols, system metrics, and network infrastructure.


Core provides a centralized view of your entire IT operations network and business processes. Users can review detailed status information directly through the web interface.


Alerts are delivered to IT staff via email and SMS to ensure fast detection of infrastructure outages. Multi-user notification escalation capabilities ensure alerts reach the attention of the appropriate person.

Problem Remediation

Event handlers allow automatic restart of failed applications, servers, devices, and services when problems are detected.

Proactive Planning

Trending and capacity planning extensions allow users to proactively plan for upgrades. Scheduled downtime will allow users to suppress alerts during an infrastructure upgrade.


Availability reports ensure SLAs are being met. Historical reports provide record of alerts, notifications, outages, and alert response. Third party add-ons also extend reporting capabilities.

Multi-Tenant Capabilities

Multi-user access to the web interface allows stake holders to view infrastructure status. User-specific views can be configured to ensures clients see only their infrastructure components.

Extendable Architecture

Multiple API’s provide integration with in-house and third-party applications. Hundreds of community-developed add-ons also extend Core’s functionality.

Reliable and Respected Platform

Nagios Core is an open source software with more than 10 years of active development, and over a million users worldwide. Multiple awards, media coverage, and recognition prove Nagios’ value in the open source world.


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

Pricing Plans

Single License

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