I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services running on our servers.
Nagios XI offers powerful monitoring with customizable scripts and extensive plugin support, making it ideal for those overseeing IT services and infrastructure. It features an intuitive dashboard, real-time alerts, and comprehensive device support, ensuring flexible and scalable network monitoring.


| Product | Mindshare (%) |
|---|---|
| Nagios XI | 3.5% |
| Zabbix | 5.1% |
| Datadog | 3.7% |
| Other | 87.7% |
| Type | Title | Date | |
|---|---|---|---|
| Category | IT Infrastructure Monitoring | Jun 21, 2026 | Download |
| Product | Reviews, tips, and advice from real users | Jun 21, 2026 | Download |
| Comparison | Nagios XI vs Zabbix | Jun 21, 2026 | Download |
| Comparison | Nagios XI vs Datadog | Jun 21, 2026 | Download |
| Comparison | Nagios XI vs Auvik Network Management (ANM) | Jun 21, 2026 | Download |
| Title | Rating | Mindshare | Recommending | |
|---|---|---|---|---|
| Datadog | 4.3 | 3.7% | 97% | 211 interviewsAdd to research |
| Zabbix | 4.2 | 5.1% | 95% | 109 interviewsAdd to research |
| Company Size | Count |
|---|---|
| Small Business | 17 |
| Midsize Enterprise | 12 |
| Large Enterprise | 16 |
| Company Size | Count |
|---|---|
| Small Business | 273 |
| Midsize Enterprise | 151 |
| Large Enterprise | 343 |
Nagios XI stands out due to its robust monitoring capabilities, emphasizing flexibility and vast plugin support for custom scripts and service monitoring. Users value its intuitive dashboard for real-time alerts and device compatibility, which simplifies installation and enhances scalability and network visualization. Its open-source foundation assures performance and stability, while a setup wizard aids initial configuration. Despite its strengths, Nagios XI could benefit from a more user-friendly interface, enhanced installation processes, better network map customization, improved cloud integration, and alerting capabilities. Users often face hurdles with its scalability, configuration management, and reporting flexibility, and enterprise clients desire improved dashboards, clustering support, and AI integration.
What are some key features of Nagios XI?Nagios XI is widely used in monitoring network servers, infrastructure environments, and IT services. Organizations rely on Nagios XI for comprehensive monitoring of hardware, memory storage, CPUs, databases, services, and applications. It's frequently implemented to manage multiple servers, routers, switches, modems, and power supplies, and integrates with virtual and cloud servers. By supporting custom scripts and data collection, it allows for effective alerts and notifications for network and equipment statuses across various sectors.
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
| Author info | Rating | Review Summary |
|---|---|---|
| Network and Security Engineer at a educational organization with 1,001-5,000 employees | 3.5 | I use Nagios XI mainly for monitoring server performance like CPU and memory. It's easy to install compared to other solutions, saving setup time. However, its user interface needs improvement. I considered Grafana and Libre NMS as alternatives. |
| Site Duty Manager at Assw | 4.0 | We use Nagios XI for network and server monitoring, appreciating its effective alerting system and useful features like JPS Web. Although we love it, the GUI could be improved. We've also considered alternatives like Zabbix and ScienceLogic. |
| Assistant Director at unpa | 5.0 | I find Nagios XI excellent for monitoring IT infrastructure, being very stable and scalable. While deployment can be complex for some and more integrations would be nice, I rate it highly for its effectiveness and features. |
| Senior DevOps Engineer Individual Contributor at EML Payments Ltd | 4.0 | I value Nagios XI for stable, scalable on-premises network monitoring and good ROI. However, its public cloud limitations mean I won't extend it to my hybrid cloud strategy, seeking alternatives there. |
| Solutions Architect at NTT | 3.5 | No summary available |
| Manager, Information Technology Monitoring at a tech services company with 201-500 employees | 3.0 | We primarily used Nagios XI to monitor Linux servers and scripts due to its simplicity and ease of use. However, we faced issues with graphics and scalability, found it expensive, and ultimately preferred Checkmk for its stability and affordability. |
| DevOps consultant at Africa4Data | 4.0 | I find Nagios XI beneficial for its numerous plugins and scripts that enhance monitoring capabilities. However, it lacks SAP monitoring and a built-in dashboard, requiring manual database connections for creating visuals, which is a drawback. |
| Senior Analyst at a tech vendor with 10,001+ employees | 4.5 | I use Nagios XI for infrastructure and application monitoring, finding its customization feature valuable for tailoring to specific needs. However, improving network and hardware monitoring and adding automatic reporting would enhance its effectiveness. The solution is stable overall. |
| Manager IT / Technical Project at a comms service provider with 11-50 employees | 3.5 | I use Nagios XI for system monitoring, finding it stable, customizable, and easy to set up and integrate. Scalability, however, is not easy. Support is good, though reaching the right agent can take time. I recommend it. |
| Senior Consultant at a consultancy with 10,001+ employees | 4.0 | I use Nagios XI for infrastructure monitoring, valuing its flexibility and reports. While setup was easy, modifying configurations is clunky, and technical support is often unresponsive. Despite this, I rate it an 8/10. |

I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services running on our servers.
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
I have been using Nagios XI for almost a year.
I would rate the stability of Nagios XI as an eight out of ten. It is very stable.
I rate scalability as a seven out of ten. If the user interface isn’t presenting data well, it becomes difficult to manage when scaling. I’m sure it can scale, yet handling large data becomes cumbersome.
I haven't really needed to contact tech support from Nagios. I haven't had much experience with their customer service.
The initial setup of Nagios XI is simple and straightforward.
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
I evaluated Grafana and Libre NMS. Grafana and Libre NMS are open source, while Nagios is commercial and requires a license.
I would definitely recommend Nagios XI if the use case fits. It’s better to focus on ensuring that the current features work well and to provide new features as separate products to prevent this product from becoming cumbersome.
I would rate Nagios XI overall as a seven out of ten.

We use Nagios XI in our network and server monitoring and sub-SMB. If somebody needs to listen to traffic, we use it for that.
We love Nagios XI due to the fact that JPS Web is very useful. JPS monitors the modem and performs switching, monitoring the computer, and performing switching. We implement some applications and traffic monitoring. The alerting system is very effective. For instance, if we have an alarm on some RAM storage if the traffic is cut or dropped.
The GUI could be improved. It's a bit too basic, and maybe having a GraphQL interface would resolve this. Also, there is room for improvement in the interface.
We have worked with Nagios XI for ten years before.
It's easy to adapt and not complex.
We didn't need to ask them for support before. It's easy to deal with it.
Positive
We worked with Nagios XI before and we love it.
The initial setup was very easy.
We are using the free, open-source version.
I recommend Nagios XI to other IT professionals. I would rate the solution eight out of ten.
It is a very good solution to monitoring infrastructure of IT services.
It's got very nice tools. We have notifications via email or short messages via SMS.
It's great for monitoring IT services infrastructure. You can monitor all your servers, your database, and server virtualization.
I don't have any problem with the Nagios XI. It's the best.
For some, it may be difficult to deploy. The process could be simplified.
We'd like to see more integration capabilities.
There's a bit of complexity in the product in general. It could be simplified overall.
I've been using the solution for ten years.
It's very, very stable. We don't have a problem with the stability of the solution. It's a very stable solution. It is the best solution for monitoring any IT infrastructure for all companies.
I don't have a problem with the scalability of Nagios XI.
We have people from many teams using the solution. Right now, we have ten users on the solution.
We haven't needed to contact support since we have a very big, strong senior engineering team. We have very good experience in-house in order to manage and configure the solution and resolve the problem. If we needed support, we have the contacts within the company logistically. We can open a ticket. For now, we don't need any support since the solution is very easy. Even with deployment, we don't need any support.
I'm also familiar with Cacti. If you compare it with Cacti or any other solution, Nagios is the best.
I'm trying to use the SolarWinds solution as well. It's very easy to deploy if you compare it with other solutions. The efficacy and the time it takes to deploy this solution are very short compared to Cacti or SolarWinds or other solutions. Even the cost and lack of complexity are great.
The initial setup is not a big problem for me. We just integrated Nagios XI with the solution to send SMS notifications. It might be very complex for other technicians and engineering. For me, I have good knowledge about integrating XI with other solutions. It can be a very complex task if a person is not knowledgeable.
We have six administrators that are in security and networking, and they are working with this solution in our company. We have a help desk and security team working with the product.
I was able to deploy the solution myself.
I don't have any visibility on the ROI.
I don't deal with the licensing aspect of the product.
We use different deployments of the solution. All versions are very similar.
I have installed and deployed a large number of servers, both physical and virtual, and a large number of switches, routers, wifi devices, and printers. You can monitor any devices, servers, and services with the Nagios XI, including SMTP, TCP, HTTP, DNS, et cetera.
I'd recommend the solution to others.
I'd rate it overall ten out of ten.
We use Nagios XI to monitor all of our network assets.
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.
It's a monitoring agent. It's designed to do one thing. Its most valuable feature is its monitoring.
I would like them to have better public cloud discovery.
I would like to be able to extend it to all of our data centers, whether they are in the cloud or not. It would be helpful if I could connect everywhere.
I have been using Nagios XI for two years.
Nagios XI is stable. The stability is great.
Nagios XI is scalable. It covers our data.
We have eight users in our organization who are network administrators, engineers, and senior operations staff.
It is extensively being used. It currently covers two entire data centers.
There are approximately 600 assets in total. We're not sure if we are going to extend its usage. We are implementing our hybrid cloud strategy, and it will most likely not be suitable for monitoring our public cloud assets.
We will not be using this solution in the future, but I wanted to explain why. If it could, which is sort of can, there are better options for us in AWS and Azure for our use cases. We're unlikely to extend it to the cloud, but as long as our data centers are operational, we'll continue to use it.
Technical support is generally good. I would rate them a four out of five.
Positive
We used a solution previously, but I don't recall what it was.
The initial setup was satisfactory.
It wasn't any better or worse than the others.
It was difficult to configure, but not more complex than others similar to it.
It took a few months to complete the deployment. We deployed from scratch, we had to upgrade the network.
The deployment was done in-house.
We only need two people to deploy and maintain this solution; it is very simple.
Our service statistics aren't particularly impressive, but we have seen a return on investment.
I would rate it a five out of five.
It's an essential part of our infrastructure, and we'll keep using it.
Licensing costs are reasonable. It's approximately $6,000.00.
It's good value for the money.
There were no additional fees in addition to the standard licensing fee.
We used the enterprise version; we started with the pay-as-you-go version, but the real one is much better.
With any changes to the network's planning, It did require downtime, don't rush it. Make sure you're resilient and take it slowly. You don't have to start doing everything at once, but you should start with your most important assets.
I would rate Nagios XI an eight out of ten.

Nagios XI is a simple monitoring tool with performance management and everything a standard monitoring tool provides.
Nagios XI doesn't provide scripting. For example, if we have built up multiple IPX tunnels from a base location to a data center location and want to monitor or trigger an alert if the tunnel goes down, Nagios XI does not automatically send alerts notifying us that the tunnel is down. This is a feature we want, and in the past, Nagios completed scripting for us, but it didn't work out well.
In addition, Nagios XI doesn't have a feature where we can push the configuration from the server to all our devices. For example, if there are 500 devices in our network and we need to write down a simple command like a show clock or want to write the configuration, we cannot execute this command on all of our devices. We have already raised this issue with Nagios, and they told us they would speak with the BU team to see if this can be applied in the next release. If they do, it will come with an additional license.
Another feature we want is the IP SLA Tracking in Cisco. For example, if our ISP connection is traversing through an L2 point, which is a layer two point, we don't have IP-to-IP communication to track those interfaces. So if we need to implement something end-to-end and the interface goes down, we should get alerts for that. And if the interface goes down, there should be specific behaviour so that our traffic can switch over from the LAN or the WAN. That is not in the current Nagios deployment, but they have advised they are working on it.
We have been using this solution for nine months, and it is a cloud-based solution on Azure.
It is a stable solution.
It is a scalable solution.
I rate the technical support an eight out of ten.
Positive
I rate this solution a seven out of ten. If we were to use a solution other than Nagios XI, it would be SolarWinds. The current problems we have with Nagios XI are easily deployed in SolarWinds. In addition, the reporting structure could be more streamlined.
We use the solution mainly to monitor Linux servers, processes, and scripts.
The solution's most valuable feature is its simplicity. The solution is easy to use, start working with, administer, and install.
From an alerting point of view, some graphics and metrics don't work properly with Nagios XI as they do with Checkmk. The solution's scalability, pricing, stability, and support could be improved. Nagios XI should include more AI and cloud capabilities to scale the infrastructure better.
I have been using Nagios XI for more than five years.
We didn't get good answers from the solution's technical support.
Neutral
We prefer Checkmk over Nagios XI because Checkmk is easier to use, cheaper, more scalable, and more stable for us. The alerting capabilities of Nagios XI are similar to those of Checkmk. Since we had some glitches with Nagios XI, we decided to switch to Checkmk.
The solution's initial setup is easy. One person can install the product in around one or two days. We need one person to maintain and update the solution.
The solution provided a better return on investment in the past. However, it's too expensive currently, and the return on investment is not as good as it used to be.
Nagios XI is an expensive solution.
On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing an eight out of ten.
We had no problems with the solution's integration capabilities.
Overall, I rate the solution a six out of ten.
The solution has a lot of plugins and scripts integrated with it. It is very good for monitoring.
The product does not have SAP monitoring. When I was using the solution, it did not have a dashboard. We had to manually connect to the database, collect information and create the visuals.
I used the solution in my previous organization.
The product is stable.
The solution is not scalable. Less than twenty people were using the solution in my previous organization.
The product's initial setup is more complex than that of Elastic.
The deployment process depends on the version we use. To deploy the solution, we must install the package on the server, put the correct syntax, point to the correct scripts, and download the monitoring scripts. Based on the data we collect, we can build a basic dashboard.
Overall, I rate the solution an eight out of ten.

We are using Nagios XI for our infrastructure monitoring, and application optimum monitoring, such as certificate monitoring on the waste and database parameters.
The most valuable feature of Nagios XI is customization. We can customize based on our requirements. We can do modifications and implement a lot of scripts. Additionally, it is easy to use.
Nagios XI can improve network and hardware monitoring, these parameters should be simplified to allow usage for monitoring. Additionally, if there was automatic reporting it would be helpful.
I have been using Nagios XI for six months.
The solution is scalable.
We have approximately 20 people in our applications team using the solution.
I did not use the support from the vendor.
The solution is stable.
It's advisable to have a basic understanding of the Linux Operating System prior to using Nagios XI, such as common Linux commands, what a server is, and monitoring basics. Essential knowledge of Linux commands is necessary.
I would recommend this solution to others.
I rate Nagios XI a nine out of ten.
We are using Nagios XI for system-level monitoring. For example, hardware and memory storage monitoring. Additionally, we use the solution for built-in operating systems and database services, such as Postgres and MySQL, and some custom services that we use a custom script to fetch the data and feed the Nagios XI for alerts and notifications.
The most valuable features of Nagios XI are you can customize it based on your use case and requirements. It is flexible and easy to integrate with our systems. You can customize the solution by adding additional features using code.
I have been using Nagios XI for approximately two years.
Nagios XI is stable.
The scalability of Nagios XI is scalable. However, it is not easy to do.
We have approximately 12 system engineers and system administrators using the solution.
The support from Nagios XI is good and the response time is good. However, it can take some time to reach the right agent to support the problem. Overall the support is good.
Nagios XI is very easy to install in our PE plugins to start monitoring the servers.
Our team maintains Nagios XI in-house.
I would recommend this tool to others.
I rate Nagios XI a seven out of ten.

The main use case is the monitoring of infrastructure environments.
Nagios allows us to configure any device so that we can send pager alerts when people don't have access to emails. It also allows us to schedule downtime and maintenance.
The most valuable features are the product's flexibility and the daily and monthly availability reports.
An area for improvement would be that when we need any modifications for the configurations, we need to delete the host and configure through CPM. It would be great if they could add a feature so that the existing host can be modified through XI. In the next release, I'd like them to add an option to modify the results when configuring through results.
I've been working with Nagios XI for the last four years.
I'm happy with our service.
The technical support is variable - sometimes I get answers, but most of my tickets go unanswered.
I previously used Nagios Core but switched because there was no DUI, so we had to do every configuration on the line.
The setup was easy, taking between 15 and 20 days, and I would rate my experience as 3.5.
Licensing is available quarterly.
Nagios is a good product, which can configure many kinds of plugins. I would give this product a rating of eight out of ten.