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Nagios Core Resources for the True IT Hobbyist

Explore our variety of Nagios Core resources developed for and supported by the open-source community.

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Customers Trust Nagios XI
Derek Brewer
Derek BrewerIBM
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"The biggest advantage of Nagios for us is its customizations. Nagios has simplified a very large job, allowed us to make the necessary customizations needed and provided us with a community that is a valuable resource when a new requirement comes up."
Wayne Creech
Wayne CreechVerizon
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"I deployed Nagios XI and NNA as a pilot. Management was thrilled and issues/outages were cut drastically. I have been using Nagios since the days of Net Saint. There are no other options as far as I am concerned."
Mike Wonder
Mike WonderTechnology Service Corporation
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"Nagios was easy to implement and the support staff has been great for any minor issues we encountered. Nagios was easy to deploy and very affordable where many other tools were way too complicated and expensive. We are so happy with Nagios, and it has freed us up to focus on other initiatives."
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"I deployed Nagios XI and NNA as a pilot. Management was thrilled and issues/outages were cut drastically. I have been using Nagios since the days of Net Saint. There are no other options as far as I am concerned."
Wayne Creech
Wayne CreechVerizon
"Nagios was easy to implement and the support staff has been great for any minor issues we encountered. Nagios was easy to deploy and very affordable where many other tools were way too complicated and expensive. We are so happy with Nagios, and it has freed us up to focus on other initiatives."
Mike Wonder
Mike WonderTechnology Service Corporation
"The biggest advantage of Nagios for us is its customizations. Nagios has simplified a very large job, allowed us to make the necessary customizations needed and provided us with a community that is a valuable resource when a new requirement comes up."
Derek Brewer
Derek BrewerIBM
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Nagios XI Case Studies

Discover why thousands of companies made the transition from Core to Nagios XI for all their monitoring needs. 

View All Case Studies

Getting Started With Nagios Core

Learn the basics about our original, open-source monitoring solution.

Core vs XI Comparison

An outline for comparing the main features of Core and XI.

How it Works

A synopsis of the capabilities of Core.

Product Overview

A guide to the benefits and capabilities of Core.

Features

An overview of the features that Core provides.

Nagios Core Video Resources

Watch tutorials for navigating Nagios Core and leveraging the status of your hosts and services.

Nagios Core Tutorials: Navigating the Nagios Core Interface and Homepage
Navigating the Nagios Core Interface and Homepage

An overview on how to navigate the Core homepage

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Nagios Core Tutorials: View Host Status Details On Nagios Core Page
View Your Host Status Details on Nagios Core page

Learn how to view all your host, device, and status information on the Core Host Status Details page

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Nagios Core Tutorials: Using the Service Status Details View in Core
Using the Service Status Details View in Nagios Core

Learn how to view all your hosts, services and relevant status information on the Core Service Status Details page 

Watch Now
Nagios Core Tutorials: Leverage the Status Map Abilities of Nagios Core
Leverage the Status Map Abilities of Nagios Core

A tutorial on how to see a graphical representation of your entire network with the Core Status Maps page 

Watch Now
Nagios Core Tutorials: Navigating the Nagios Core Interface and Homepage
Navigating the Nagios Core Interface and Homepage

Navigating the Core Interface and Homepage

Watch Now
Nagios Core Tutorials: View Host Status Details On Nagios Core Page
View Your Host Status Details on Nagios Core page

Learn how to view all your host, device, and status information on the Core Host Status Details page

Watch Now
Nagios Core Tutorials: Using the Service Status Details View in Core
Using the Service Status Details View in Nagios Core

Learn how to view all your hosts, services and relevant status information on the Core Service Status Details page 

Watch Now
Nagios Core Tutorials: Leverage the Status Map Abilities of Nagios Core
Leverage the Status Map Abilities of Nagios Core

A tutorial on how to see a graphical representation of your entire network with the Core Status Maps page 

Watch Now

Nagios Core Documentation

Know more with detailed, technical documentation on Nagios Core.

Nagios Core Documentation

Know more with detailed, technical documentation on Nagios Core.

Nagios Core documentation

XI is Nagios Core but So Much More

XI is our fully supported, enterprise-level monitoring solution with time-saving features, including easy-to-use Configuration Wizards, advanced multi-tenancy capabilities, and a graphical user interface. Easily migrate your Nagios Core instance to XI now and see the benefits with nothing to lose.

Learn More

Frequently Asked Questions

View this article on nagios.lock changes.
Resolve Nagios did not exit error with this article.
Follow the troubleshooting steps outlined in our service not starting article.
If you would like to manually migrate your Core instance to XI, follow the guidelines in Migrating from Nagios Core to Nagios XI
Nagios XI is our fully supported monitoring solution built on the foundation of Nagios Core with additional features and functionality to streamline your IT management. XI is equipped with time-saving features, including easy-to-use Configuration Wizards, advanced multi-tenancy capabilities, and a customizable GUI.

A step up from the Standard Edition of XI, the Enterprise Edition has all standard features plus additional features, such as capacity planning, bulk modification, and scheduled reports.

Purchase Your Nagios License Today

Get the features and functionality your team deserves with Nagios XI, our enterprise-level monitoring solution.

What’s Included:

  • Connect with our dedicated team of experts
  • Receive help wherever you are in the world
  • Access to the latest product features and updates
  • Provide input on future development features
  • Customize with a variety of support options
Renew License

Purchase Your Nagios License Today

Get the features and functionality your team deserves with Nagios XI, our enterprise-level monitoring solution.

What’s Included:

  • Connect with our dedicated team of experts
  • Receive help wherever you are in the world
  • Access to the latest product features and updates
  • Provide input on future development features
  • Customize with a variety of support options
Renew License
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