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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
19th
Ranking in IT Infrastructure Monitoring
16th
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
66th
Ranking in IT Infrastructure Monitoring
58th
Average Rating
9.2
Reviews Sentiment
7.6
Number of Reviews
22
Ranking in other categories
Server Monitoring (27th), Log Management (61st), Cloud Monitoring Software (39th)
 

Mindshare comparison

As of August 2026, in the Network Monitoring Software category, the mindshare of Nagios Core is 1.4%, down from 2.7% 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 Core1.4%
Pandora FMS0.7%
Other97.9%
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

"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."
"Nagios Core is a great solution for monitoring pretty much any size of deployment but you do need to know your way around a Linux system to set it up and run it."
"Its an awesome product to use."
"I like that it's very simple to install, easy to manage and deploy, and easy to use for monitoring."
"The features of Nagios Core that we find most valuable are the plugins we use, we can check the uptime and see how many servers and routers and create groups accordingly."
"Provides timely notifications."
"Monitoring with Nagios Core is helpful because it provides immediate alerts if something goes down, such as a server, or wireless router, or if there's a cable break. This allows us to respond promptly to any issues."
"Nagios Core is stable."
"The monitoring system within this solution is very good. It is easy to use and navigate, and makes issue alarms easily viewable."
"Thanks to its flexibility, I have been able to adapt the tool to our servers and find out quickly how their console works."
"This product has allowed us to identify and correct certain issues that were affecting our solution."
"The most valuable feature is that it is an all-in-one monitoring system."
"Pandora FMS (the Flexible Monitoring System) is an all-in-one package solution, and we can monitor our whole system with Service perspective."
"It allows me to quickly see the status of all of my printers, switches, computers, and virtual machines to determine if any system has fallen."
"Pandora FMS is an all-in-one solution that is cost-efficient."
"In comparison with most monitoring software, this software is incredibly easy to use."
 

Cons

"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"The scalability needs improvement, it's not scalable at this time."
"Generally, it does what I need it to do, but better error reporting would be great."
"I like to have the option to configure Nagios using the web interface."
"Default interface is clunky and slow."
"Nagios Core is not easy to use, so I don't recommend it for everyone."
"They should simplify the features so it becomes easier to setup out of the box."
"The dashboard and monitoring features could be improved."
"Improvements are needed for server and network discovery, including service-based discovery."
"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."
"I think some improvements to the Android app would be good."
"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."
"Pandora could deliver better analytics out of the box."
"I sincerely believe that Pandora needs new ideas for functionality closer to advanced device security monitoring."
"Pandora FMS is an overall great monitoring solution, but it does not have a community that is as large as Zabbix or Nagios."
"We would like the real-time monitoring of an interface to be improved within this solution."
 

Pricing and Cost Advice

"The product is cheaply priced."
"Lessening the price point would be an improvement."
"We are using the free version."
"Most the plugin features are free."
"It's free."
"We are using the free version of Nagios Core."
"We are using the open-source, unpaid version."
"Nagios Core is an open source solution, and there are no licensing fees."
"Pandora FMS is easy to implement and the pricing of licenses is competitive."
"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."
"They are very competitive on the pricing side. That's one reason why my manager keeps using it."
"The open-source version offers 100% functionality and the hardware requirements for a solution like this one are very modest."
"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 get the license and it includes updates, new versions, and access to the complete library of modules."
"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."
"In terms of money, the Enterprise version is the cheapest that I have found after a market study."
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Top Industries

By visitors reading reviews
Comms Service Provider
10%
Manufacturing Company
9%
Financial Services Firm
8%
Construction Company
7%
Comms Service Provider
17%
Construction Company
12%
Outsourcing Company
10%
Manufacturing 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: August 2026.
908,877 professionals have used our research since 2012.