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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
16th
Ranking in Server Monitoring
9th
Ranking in IT Infrastructure Monitoring
17th
Ranking in Cloud Monitoring Software
20th
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
69th
Ranking in Server Monitoring
27th
Ranking in IT Infrastructure Monitoring
58th
Ranking in Cloud Monitoring Software
41st
Average Rating
9.2
Reviews Sentiment
7.6
Number of Reviews
22
Ranking in other categories
Log Management (60th)
 

Mindshare comparison

As of May 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.5%, down from 3.3% compared to the previous year. The mindshare of Pandora FMS is 0.7%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios XI2.5%
Pandora FMS0.7%
Other96.8%
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.
MM
Independent Consultant at Maack Consulting
The open architecture is easy to extend and enhance
Pandora could deliver better analytics out of the box. You can work around these limitations with the help of other tools like Grafana. The shortcomings are mostly on the graphical side. The built-in report generators are a bit limited in some areas. They could improve their management console's ability to monitor large environments could be improved. For example, SNMP management is only partially integrated into the management console.

Quotes from Members

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

Pros

"Nagios is the best monitoring tool that I have ever worked on."
"Nagios XI is stable."
"Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried."
"The dashboard allows you to see what's going on in the overall system."
"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."
"Since this is an open source technology, if we are capable of writing the plugins in any scripting language, this product allows us to monitor anything we want."
"If you are a mid-sied company with an eye on expansion, this solution is very good."
"Nagios XI helped me to draw the network and check for system failures."
"The most valuable feature is that it is an all-in-one monitoring system."
"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."
"The official forum is active enough to answer most of the high-end technical questions that you may have."
"It provides us with proactive monitoring and is very easy to configure and maintain."
"We are consultants and thanks to Pandora can detect a lot of disasters that other companies can't, and we can offer high availability of the system to the client."
"This solution has screens that are easy to understand and provide a wealth of information."
"Thanks to this software and to the work of the support team, we have everything under control."
"The support is excellent for this product; their response time is very fast, and they are very knowledgeable."
 

Cons

"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."
"The important separation between Interface and Core to maintain historical plugins and methods generate complexity that makes Nagios unusable for repeat work."
"The web interface is perfectly fit for purpose but isn't up there with the best modern admin panels."
"The GUI could be improved. It's a bit too basic, and maybe having a GraphQL interface would resolve this."
"I would like to see more customization in the network map because it is a bit tricky to use it."
"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."
"The PNP4Nagios plugin not working easily with XI is an issue for me, because some open source monitoring plugins do not work out of the box."
"For some, it may be difficult to deploy."
"Their support is good, but it is just online communication. It would be great to be able to just call someone and talk to them instead of always writing. It works well for me because I am a decent communicator in email, but some people might find it difficult to describe in a written fashion and communicate with them that way. There is a learning curve to the interface, but once you get used to it, it is actually very powerful. They have a lot of options, but people struggle with the interface. They've improved it though, and it is getting better. They need to keep improving the learning curve to help buy-in. I'm the guy that manages it, so I'm comfortable with it. They can refine the upgrade agents to be easier. They can also do more refinement in end-user usability because not everyone is strong technically, and people who aren't strong technically might be averse to the product, even though it has come a long way. It has a complete GUI and everything."
"An update to the Android app would be appreciated."
"Pandora could deliver better analytics out of the box."
"We would like the real-time monitoring of an interface to be improved within this solution."
"I would like to have a dashboard with all assets displayed, with a quick hover-over status."
"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."
"I sincerely believe that Pandora needs new ideas for functionality closer to advanced device security monitoring."
"It would be helpful to include the generation of reports for times that the network was out of service."
 

Pricing and Cost Advice

"The licensing fees for this solution are approximately $3,000 USD per year."
"Licensing costs are reasonable."
"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 XI is an expensive solution."
"We are using the free version of this solution."
"Nagios XI is open source."
"As it is not an agentless tool, I think it is expensive."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"You get the license and it includes updates, new versions, and access to the complete library of modules."
"Growing the solution or migrating to the Enterprise version is easy, and various plans are available."
"In terms of money, the Enterprise version is the cheapest that I have found after a market study."
"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."
"The open-source version offers 100% functionality and the hardware requirements for a solution like this one are very modest."
"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."
"Only one payment and it includes support, updates, new versions, and access to the complete library of plugins except for SAP and z/OS."
"They are very competitive on the pricing side. That's one reason why my manager keeps using it."
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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
10%
Computer Software Company
8%
Comms Service Provider
7%
Manufacturing Company
7%
Comms Service Provider
17%
Construction Company
11%
Outsourcing Company
7%
Manufacturing Company
7%
 

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...
Ask a question
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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: May 2026.
896,202 professionals have used our research since 2012.