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Nagios Core vs Pandora FMS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 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 Core
Ranking in Network Monitoring Software
11th
Ranking in IT Infrastructure Monitoring
11th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
51
Ranking in other categories
No ranking in other categories
Pandora FMS
Ranking in Network Monitoring Software
68th
Ranking in IT Infrastructure Monitoring
58th
Average Rating
9.2
Reviews Sentiment
7.6
Number of Reviews
22
Ranking in other categories
Server Monitoring (26th), Log Management (60th), Cloud Monitoring Software (41st)
 

Mindshare comparison

As of June 2026, in the Network Monitoring Software category, the mindshare of Nagios Core is 1.5%, down from 2.9% 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 Core1.5%
Pandora FMS0.7%
Other97.8%
Network Monitoring Software
 

Featured Reviews

HY
Senior System Administrator at Interactive Group
Monitoring solution provides comprehensive visibility across IT infrastructure
The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.
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

"Key features include the GUI interface, its notification capabilities, and the real-time reporting."
"Dashboard provides monitor of total assets."
"It sends alerts to the right people which ensures there is no delay in the correct person or team looking into issues, and it has helped to reduce downtime in the production environment to almost zero so we now spend less time on network or server administration."
"Extensibility is good as this makes it easy to write checks on your own."
"Alert calls occur anytime a service goes down or a matrix is difficult and that helps us to quickly restore service and transfer work."
"You should really try Nagios; it will help a lot and I have found that it is the best buddy for system admins."
"The poller is really good, I can easily implement new stuff and it is scalable."
"We've got a medium size distributed system with a lot of locally installed machines, and Nagios provides us with a solid and reliable monitoring solution for these machines."
"The administration of the console is very easy. I like that Pandora FMS is interactive and easy to manage."
"Stability is where they shine. It has been super stable. We have high-end monitoring for our data centers. We monitor all kinds of metrics in our two data centers. We monitor maybe over 2,500 checks, and the product that has been successful and always alerting us is Pandora."
"Pandora FMS is an all-in-one solution that is cost-efficient."
"It provides us with proactive monitoring and is very easy to configure and maintain."
"I like this solution a lot because it has a very large Hispanic community and the platform looks very friendly."
"The solution is so lightweight that with only 4GB of ram, it allows keeping track of up to two hundred agents from a single console."
"The network monitoring and configuration within this solution is very good."
"Pandora FMS (the Flexible Monitoring System) is an all-in-one package solution, and we can monitor our whole system with Service perspective."
 

Cons

"They should simplify the features so it becomes easier to setup out of the box."
"We're using the free version, which limits us in terms of the things that we can do."
"We're using the free version, which limits us in terms of the things that we can do. If we had the paid version, a lot of our issues would probably go away. For example, we can't isolate instances that are being built or updated with the production ones. When they're being built, on Nagios, they're showing in red. It'd be nice to be able to partition those off until they're all green, and then we can bring them into the environment. This is probably because we've got the free version and not the paid version. If we went for the paid version, it would probably allow us to do exactly what we want to or remove the restrictions that we have, but if we are able to isolate instances in the free version, it would make life much easier."
"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"Some of the reporting functionality is a bit basic and configuration is a chore although by the use of NagiosQL this can be made a lot easier."
"Default interface is clunky and slow."
"It's not that easy to install the product itself. Also, the UI is a bit hard for regular users to navigate through."
"Lessening the price point would be an improvement."
"An update to the Android app would be appreciated."
"When it comes to the definition of local Software Agents for the first time in the open-source version, it can become very tedious."
"Third-party integration should be improved for some commonly used products such as Universal CMDB."
"I find that this software is resource heavy, and demands a lot of processing capacity."
"The product lacks APIs for integration with other systems and we have issues with monitoring."
"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."
"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."
 

Pricing and Cost Advice

"The Nagios Core (PNP4Nagios + Core) is free and can be setup by Netadmin within a few hours. The only additional cost is the cloud server."
"It's free."
"Nagios Core is free to use."
"It's free."
"Most the plugin features are free."
"The enterprise version has technical support. The version we are using is free."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
"We are using the free version of Nagios Core."
"The Open Source Community Edition is great to just explore the software, or use it on medium-sized infrastructures."
"You get the license and it includes updates, new versions, and access to the complete library of modules."
"Only one payment and it includes support, updates, new versions, and access to the complete library of plugins except for SAP and z/OS."
"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."
"Pandora FMS is easy to implement and the pricing of licenses is competitive."
"In terms of money, the Enterprise version is the cheapest that I have found after a market study."
"Growing the solution or migrating to the Enterprise version is easy, and various plans are available."
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Top Industries

By visitors reading reviews
Manufacturing Company
10%
Comms Service Provider
9%
Financial Services Firm
8%
Computer Software Company
7%
Comms Service Provider
16%
Construction Company
14%
Manufacturing Company
8%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise4
Large Enterprise3
 

Questions from the Community

What is your experience regarding pricing and costs for Nagios Core?
Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.
What needs improvement with Nagios Core?
The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.
What is your primary use case for Nagios Core?
I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...
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Comparisons

 

Overview

 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Rakuten, Prosegur, Repsol, Teléfonica, Allianz, Ottawa Hospital, Hughes
Find out what your peers are saying about Nagios Core vs. Pandora FMS and other solutions. Updated: June 2026.
902,270 professionals have used our research since 2012.