Nagios XI Server Monitoring: Product Overview and Insight

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Bottom Line:

Many Linux administrators have started out their careers using the open source Nagios platform, and with Nagios XI they can extend that experience with a full featured, commercially supported platform.

A key differentiator for Nagios is the expansive community of users that have created all manner of plugins that extend the capabilities of the platform.

Nagios is the vendor name as well as the name of the well known open source project. The open source project encompasses a core monitoring engine (Nagios Core), and a series of plugins and add-ons that provide additional functionality. Nagios XI is a commercially supported platform that builds on the Nagios Core with enterprise grade features for usability and server monitoring.

Getting started with Nagios XI is among the strongest points of the commercial solution, with a configuration wizards that help users to get monitoring setup rapidly.

Nagios isn't just for server monitoring. Like many of the other monitoring solutions in the ServerWatch list of top monitoring vendors, it can also be used for other classes of IT asset monitoring including networking. Complexity can be an issue in some cases and not all open source plugins always work 'out of the box' with Nagios XI product.

Service Description:

Nagios provides a platform of any type of IT infrastructure monitoring including server hardware and server application. There is a large community of plugins that enable easy setup and monitoring of many different types of server hardware.

Because of this extensive community, if there's functionality you need, you'll likely find it with Nagios.


Performance Monitoring:
Options for tracking different server and application metrics.

Capacity Planning:
Automated, integrated trending and capacity planning graphs allow organizations to plan for upgrades.

Configuration Wizards:
Fast Wizards! Simply enter the required information, and you’re up and monitoring with a few simple clicks.

Alerts are sent to IT staff, business stakeholders, and end-users via email or mobile text messages, providing them with outage details so they can start resolving issues immediately.


Application download, distributed as a virtual machine image.


Forum and email support. Optional phone support contracts are available to customers who require additional support services. Each license includes twelve months of maintenance.

Use Cases:

Any organization looking to understand how an entire workflow is operating from infrastructure on up.


Nagios XI has two editions:

  1. Standard starts at $1,995 
  2. Enterprise starts at $3,495


Workload Support

on-premises software


on-premises virtual machine software installation

Key Differentiator

Large open source community and plugin ecosystem


Standard editions starts at $1,995 while Enterprise starts at $3,495

This article was originally published on March 4, 2019
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