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Nagios XI vs Pandora FMS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 6, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Nagios XI
Ranking in Network Monitoring Software
23rd
Ranking in Server Monitoring
13th
Ranking in IT Infrastructure Monitoring
25th
Ranking in Cloud Monitoring Software
25th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
No ranking in other categories
Pandora FMS
Ranking in Network Monitoring Software
77th
Ranking in Server Monitoring
26th
Ranking in IT Infrastructure Monitoring
56th
Ranking in Cloud Monitoring Software
45th
Average Rating
9.2
Reviews Sentiment
7.6
Number of Reviews
22
Ranking in other categories
Log Management (62nd)
 

Mindshare comparison

As of February 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.3%, down from 3.3% compared to the previous year. The mindshare of Pandora FMS is 0.6%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios XI2.3%
Pandora FMS0.6%
Other97.1%
Network Monitoring Software
 

Featured Reviews

Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
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.
Gabriel Glusgold - PeerSpot reviewer
Asociado/ at Infraestructura Informática
Personalized metrics; simplicity of data
My primary use case for Pandora is monitoring This solution has helped us improve our organization by allowing us to create a lot of metrics on several platforms, including Windows, Linux, and Unix. We then use these Pandora metrics to create an interface. We then pass the interface off to the…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The solution is pretty stable."
"You want to monitor a specific metric that nobody else has? You can do it even with the most basic of scripting skills, and you can always share it with the vast community of Nagios Exchange."
"Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried."
"Nagios XI is a simple monitoring tool with performance management."
"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."
"This is a very good solution and it is simple to use, for any company."
"The most valuable feature is the dashboard, where I can have a single screen that provides a summary for hundreds of servers."
"Nagios is a custom API manager, and we can expose custom APIs for our integration. This is a great feature."
"What I value most about Pandora FMS is the simplicity of working with it."
"It provides us with proactive monitoring and is very easy to configure and maintain."
"Thanks to its flexibility, I have been able to adapt the tool to our servers and find out quickly how their console works."
"This solution has screens that are easy to understand and provide a wealth of information."
"It is easy to create your own custom modules if you just know a little bit of scripting. If you have unique requirements, you can just make your own modules. You can even grab checks from other vendors. There are open-source checks for various things such as SMTP, etc. There is a long list of different ones from Nagios. You can just use them, and within seconds, you get yourself a check that is monitoring whatever you need. It is really flexible. I guess that's why they call it Pandora Flexible Monitoring System (FMS). It is reliable. It does the job, and it alerts. It is also surprisingly feature-rich. Our network guy just recently asked about a particular protocol to monitor the bandwidth on the network, which is not a common protocol. When I looked it up, and I found that they cover it. It is very mature for a not-so-known product."
"I like this solution a lot because it has a very large Hispanic community and the platform looks very friendly."
"The most valuable features are auto-discovery and automatic detection of the network topology and network monitoring."
"Pandora FMS provides us with a general report (graphical) about all of the connected devices, which helps with planning new stations and tracking them."
 

Cons

"They need more documentation for the plugins."
"The GUI could be improved."
"From an alerting point of view, some graphics and metrics don't work properly with Nagios XI as they do with Checkmk."
"The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate."
"The reporting structure could be more streamlined."
"The reporting part should be made simpler. While we can obtain all the reports we need, we always have to create work-arounds to get them."
"Nagios XI can improve its GUI for users with a new look."
"The product could be optimized to improve the administrative user experience via the Nagios Core Configuration (NCC) GUI module."
"Improvements are needed for server and network discovery, including service-based discovery."
"In the future, we may have double the number of devices, and we do not want to have any issues with performance in the data display."
"The price for Pandora FMS is expensive."
"Pandora FMS is an overall great monitoring solution, but it does not have a community that is as large as Zabbix or Nagios."
"When it comes to the definition of local Software Agents for the first time in the open-source version, it can become very tedious."
"It would be helpful to include the generation of reports for times that the network was out of service."
"I find that this software is resource heavy, and demands a lot of processing capacity."
"It would be useful if Pandora FMS included an ISO image (or «software appliance») for each big company that leases virtual private machines (VPS), just like in AWS."
 

Pricing and Cost Advice

"The pricing is high with separate licensing for the product and support."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"For the cost of the commercial product and support, and taking into account the open source characteristics of it, I believe it is difficult to a better value."
"Nagios XI is open source."
"Nagios XI is an expensive solution."
"This solution is very expensive, at approximately $5,000 USD when I purchased it, which is why I haven't upgraded my version in several years."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"You have to pay for the number of agents and models that you are monitoring. I would rate the cost at three with one being the most expensive and five being the cheapest."
"My rule of thumb would be that if you need more than thirty agents, and you lack an automation tool such as Chef or Puppet, you will save a lot of time and money going to the Enterprise edition."
"Growing the solution or migrating to the Enterprise version is easy, and various plans are available."
"Pandora FMS is easy to implement and the pricing of licenses is competitive."
"The Open Source Community Edition is great to just explore the software, or use it on medium-sized infrastructures."
"The open-source version offers 100% functionality and the hardware requirements for a solution like this one are very modest."
"In terms of money, the Enterprise version is the cheapest that I have found after a market study."
"Only one payment and it includes support, updates, new versions, and access to the complete library of plugins except for SAP and z/OS."
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
11%
Manufacturing Company
8%
Government
7%
Comms Service Provider
13%
Government
10%
Outsourcing Company
9%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise4
Large Enterprise3
 

Questions from the Community

What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What is your primary use case for Nagios XI?
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 runnin...
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Comparisons

 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Rakuten, Prosegur, Repsol, Teléfonica, Allianz, Ottawa Hospital, Hughes
Find out what your peers are saying about Nagios XI vs. Pandora FMS and other solutions. Updated: January 2026.
881,515 professionals have used our research since 2012.