Nagios Open Source


Nagios Core


Download the core monitoring engine and a basic web interface.


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Nagios Core Plugins


Download the latest Nagios Core plugins package (50 plugins).


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Nagios Core Frontends


See a variety of Open Source front-ends by the community.


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Nagios Core Addons


See additional projects that extend Nagios Core functionality.


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Nagios XI
Monitoring of all mission-critical infrastructure components on any operating system.

Free Download
Nagios Log Server
Make sense of your data. See security threats, audit any system, identify trends and more.

Free Download
Nagios Network Analyzer
Want to find bandwidth bottlenecks? We can tell you who, what, when and where.

Free Download

Network Monitoring

When it comes to open source network monitoring tools, the World’s largest organizations turn to Nagios. Nagios monitors the network for problems caused by overloaded data links or network connections, as well as monitoring routers, switches and more. Easily able to monitor availability, uptime and response time of every node on the network, Nagios can deliver the results in a variety of visual representations and reports.

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Server Monitoring

Nagios is known for being the best server monitoring software on the market. Server monitoring is made easy in Nagios because of the flexibility to monitor your servers with both agent-based and agentless monitoring. With over 5000 different addons available to monitor your servers, the community at the Nagios Exchange have left no stone unturned.

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Application Monitoring

Implementing effective application monitoring with Nagios allows your organization to quickly detect application, service, or process problems, and take action to eliminate downtime for your application users. Nagios provides tools for monitoring of applications and application state – including Windows applications, Linux applications, UNIX applications, and Web applications.

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See how we help thousands of companies save money and eliminate downtime

bitnetix-computer

Bitnetix

Nagios helps e-commerce retail giant reach $125,000,000 in additional sales

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Astiostech

Single-point monitoring and high availability for 2,500+ servers and 5,000+ network devices

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university-st-thomas-campus

The University of St. Thomas

University uses better data to improve purchasing decisions, bandwidth allocation, and reaction to anomalies

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Petrofac

Energy solutions giant sees increased capabilities, productivity by deploying Nagios

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Ready to Try Nagios?

You can try any of our solutions free for 60 days with no restrictions. Monitor your entire IT infrastructure, quickly sort log data, or analyze your bandwidth with Nagios. Nagios is helping organizations around the world make better business decisions with proven IT infrastructure monitoring, data collection, and netflow analysis solutions.

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