> For the complete documentation index, see [llms.txt](https://book.konstantinsecurity.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.konstantinsecurity.com/readme/architect/monitoring/nagios.md).

# Nagios

<https://www.nagios.org/>

Nagios Core is our original open-source monitoring solution, developed for and supported by hundreds of community members. Create your ideal monitoring and alerting tool with a flexible and extensible monitoring architecture.

![](/files/DCgoBI8lqGz8b3i7Shni)

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Over 10,000 Commercial customers and countless community users trust Nagios to monitor their environment. No matter the industry, you can accomplish it all with Nagios.

## Nagios Commercial Solutions

### Nagios XI

Monitor your entire IT infrastructure quickly with the most powerful monitoring solution on the market.

![](/files/vGyMubS19SNOHwofGeck)

### Nagios Log Server

Quickly and easily view, analyze, and archive logs from any source in one central location.

![](/files/1187viq79yWoT3g4GjSl)

### Nagios Network Analyzer

See where your bandwidth is dipping or spiking with our commercial grade netflow data analysis solution.

![](/files/KfmY9cWTmtb7UG5kRm9B)

### Nagios Fusion

Using Nagios Fusion you gain a centralized visual operational status and enables faster problem resolution over your entire network.

![](/files/9KMUwhtvsaI8dbsBLPJf)

## Nagios Core Resources

Nagios Frontends

Web interfaces, themes, Windows and Linux interfaces, and mobile apps for Nagios. Change the look and style of Nagios to suit your needs.

[View Page](https://www.nagios.org/downloads/nagios-core-frontends/)

See additional projects that extend Nagios Core’s functionality.

[View Page](https://www.nagios.org/downloads/nagios-core-addons/)

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[Datacenter monitoring](/readme/architect/monitoring/nagios/datacenter-monitoring.md)