

Nagios XI and Nagios Core compete in the IT monitoring solutions category. Nagios XI has the upper hand due to its advanced features and ease of use.
Features: Nagios Core is an open-source monitoring solution, offering extensive customization through plugins, and effectively monitors disk space, CPU utilization, and network services via custom scripts. Nagios XI, building on Nagios Core, provides a comprehensive and scalable management dashboard that facilitates easier configuration and includes advanced reporting tools, making it more user-friendly.
Room for Improvement: Nagios Core's configuration interface lacks smoothness, leading to complexity in management and requiring manual command-line tweaks. It needs better integration with ticketing systems and enhanced documentation. Nagios XI could improve high availability and clustering features, and users desire further enhancement in customization and reporting.
Ease of Deployment and Customer Service: Nagios Core is deployed on various environments, including on-premises and hybrid clouds, with community support being vital due to its open-source nature. Experienced users handle its complex installation. Nagios XI, with commercial support, simplifies deployment, though some users still resort to community forums for solutions.
Pricing and ROI: Nagios Core is valued for being free, operating on minimal hardware, and reducing deployment costs, appealing to organizations seeking a robust solution at no cost. Nagios XI requires a licensing fee, justified by its enhanced features and user experience. The ROI for both depends on implementation scale and complexity, with Nagios Core offering value in customization without cost, while Nagios XI provides value through enhanced support and user experience.
The solution is scalable.
If the user interface isn’t presenting data well, it becomes difficult to manage when scaling.
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
It is very stable.
Many tools have poor user interfaces, making them hard to manage and navigate.
The GUI could be improved. It's a bit too basic.
We are using the free, open-source version.
The pricing for the Nagios XI product is good and better than other solutions.
It has a very handy dashboard, providing live alerts and visibility for everything.
Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
The alerting system is very effective.
| Product | Market Share (%) |
|---|---|
| Nagios Core | 2.3% |
| Nagios XI | 3.1% |
| Other | 94.6% |



| Company Size | Count |
|---|---|
| Small Business | 20 |
| Midsize Enterprise | 11 |
| Large Enterprise | 22 |
| Company Size | Count |
|---|---|
| Small Business | 22 |
| Midsize Enterprise | 17 |
| Large Enterprise | 21 |
This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.
Nagios XI provides monitoring of all mission-critical infrastructure components, including applications, services, operating systems, network protocols, systems metrics, and network infrastructure. Third-party add-ons provide tools for monitoring virtually all in-house and external applications, services, and systems.
Nagios XI uses a powerful Core 4 monitoring engine that provides users with the highest levels of server monitoring performance. This high degree of performance enables nearly limitless scalability and monitoring powers.
With Nagios XI, stakeholders can check up on their infrastructure status using the role-based web interface. Sophisticated dashboards enable access to monitoring information and third-party data. Administrators can easily set up permissions so users can only access the infrastructure they are authorized to view.
Nagios XI Benefits and Features
Some of the benefits and top features of using Nagios XI include:
Reviews from Real Users
Nagios XI stands out among its competitors for a number of reasons. Several major ones are its integration options and monitoring abilities, as well as its alerting features.
David P., a senior DevOps engineer at EML Payments Ltd, writes, “We use Nagios as a network discovery tool. We use Nagios to maintain our uptime statistics and to monitor our services. It has allowed us to be much more sophisticated in our monitoring and alerting.”
An IT-OSS manager at a comms service provider notes, “Nagios XI has a custom API feature, and we can expose custom APIs for our integration. This is a great feature.”
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