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Nagios Core

Open Source

Robust open-source monitoring for servers, networks, and applications.

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4.6 Editor Rating
Vetted Score
4.6 / 5.0

Earns a high score for its powerful open-source engine, extensive plugin library, and strong community support across diverse platforms.

Key Features
Extensible Monitoring Engine

Monitors hosts, services, and network resources using a flexible plugin architecture.

Customizable Alerts

Configure thresholds, notifications, and escalation paths to suit any operational workflow.

Rich Plugin Ecosystem

Leverage thousands of community-contributed plugins for databases, web servers, hardware, and more.

Frequently Asked Questions

Yes, Nagios Core is released under the GPL and can be used, modified, and distributed at no cost.

It runs natively on Linux, Unix, BSD, and macOS; Windows support is available via Cygwin or virtualized environments.

Absolutely—developers can write custom plugins in any language, and the plugin framework integrates them seamlessly into the monitoring system.
Specifications
Pricing Model Nagios Core is free and open-source; commercial Nagios XI and support plans are available for enterprises.
Supported Platforms
LinuxUnixBSDmacOS