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Icinga vs Nagios Core 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

Icinga
Ranking in Network Monitoring Software
24th
Ranking in IT Infrastructure Monitoring
29th
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
17
Ranking in other categories
Server Monitoring (14th), Cloud Monitoring Software (24th)
Nagios Core
Ranking in Network Monitoring Software
10th
Ranking in IT Infrastructure Monitoring
10th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of February 2026, in the Network Monitoring Software category, the mindshare of Icinga is 1.6%, down from 3.3% compared to the previous year. The mindshare of Nagios Core is 1.9%, down from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios Core1.9%
Icinga1.6%
Other96.5%
Network Monitoring Software
 

Featured Reviews

Harrison Bulley - PeerSpot reviewer
Senior Infrastructure Engineer at Net Consulting
A stable, scalable and cost-effective solution that helps with inbuilt scripts for easy modification
I think the software is quite good, but we have had problems with getting it to recognize certain areas and amend certain checks, where we needed so we would have to create backend scripts for those checks. Though, being open source, it has the support to create backend scripts, it would be better to have these scripts in-built.
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.

Quotes from Members

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

Pros

"The best thing about the solution is how it highlights errors, the issues, and what needs my attention. The solution directs me to areas that I should look for first."
"It is really easy in Icinga to create your own plugin and integrate it without any fuss. And it works just perfectly fine."
"There's a module called Icinga Director, which helps us configure the product using an intuitive interface through clicks instead of creating a text configuration. It's very helpful for us."
"Macros and the ability to connect it to Google Maps are valuable features."
"The drafts are easy but what I like about Icinga is that there are many add-ons that you can download."
"I like the ability to amend and adjust things really easily, which is useful in a case where you could make it auto-discover and then set a template to say all of these applications or servers under this template have an automatic threshold set that you’d set up manually."
"Icinga does the job and is fairly stable."
"An affordable solution for small organizations to do basic network monitoring."
"The solution is quite efficient."
"Our customers like that Nagios Core is an open source solution. It can be customized to our customers' specific needs."
"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."
"We use the product to monitor server applications."
"The good thing about Nagios Core is it covers everything."
"The reporting structure and the feature set are valuable to me."
"Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens."
"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."
 

Cons

"The installation and configuration are very complex."
"I think the software is quite good, but we have had problems with getting it to recognize certain areas and amend certain checks, where we needed so we would have to create backend scripts for those checks. Though, being open source, it has the support to create backend scripts, it would be better to have these scripts in-built."
"The solution lacks many features important to higher-level IT management and network support."
"One thing that Icinga lacks is the capability to create advanced and customized dashboards within the tool itself."
"In general, the product does not look good. However, it does what it is supposed to do. So, the improvements should focus on usability and UI."
"There is room for improvement in multi-tenancy. It's not perfect, not even really good. It's average, but it should be improved."
"The tool currently fails to provide notifications to users."
"Icinga’s automation could be improved."
"Making it a little easier to configure and set up from the start would help. There are multiple layers that you have to wade through to be able to set it up, to do it the right way, and to get it to do what you want it to do."
"Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."
"I believe Nagios Core will need to provide an option for big data platforms in the future."
"Nagios Core does not have a graphic display."
"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."
"The UI is a little outdated and graphics could be displayed in a better way."
"The initial setup process could be easier."
"I would like to see more training videos."
 

Pricing and Cost Advice

"The product is inexpensive compared to other DBM products."
"We're using the free version of Icinga."
"This is an open-source solution with paid support."
"Even though Icinga's financial cost is low, it is an expensive product regarding the resources required to maintain and operate it."
"The solution is free to use."
"It's an open-source solution."
"The solution is cheap."
"It is cost-effective, and the return on investment can be very interesting because the price is low."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
"It's free."
"Most the plugin features are free."
"We are using the free version."
"I would rate the solution's pricing an eight out of ten."
"It's free."
"Nagios Core is an open source solution, and there are no licensing fees."
"We are using the open-source, unpaid version."
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Top Industries

By visitors reading reviews
Educational Organization
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
8%
Computer Software Company
11%
Manufacturing Company
10%
Comms Service Provider
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise7
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise22
 

Questions from the Community

What is your experience regarding pricing and costs for Icinga?
It is cost-effective, and the return on investment can be very interesting because the price is low. If you want to include this product in the services you offer to your customers, the return on i...
What needs improvement with Icinga?
There is room for improvement in multi-tenancy. It's not perfect, not even really good. It's average, but it should be improved. For instance, multi-tenancy for monitoring the virtual infrastructur...
What is your primary use case for Icinga?
We use Icinga as a monitoring solution to monitor customers' infrastructures. We work as a managed service provider, so we offer monitoring and many other services to our customers. So we use it in...
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...
 

Comparisons

 

Also Known As

Icinga Cloud Monitoring
No data available
 

Overview

 

Sample Customers

Puppet Labs, Audi, Spacex, Debian, Snapdeal, McGill, RIPE Network Coordination Centre
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about Icinga vs. Nagios Core and other solutions. Updated: February 2026.
881,455 professionals have used our research since 2012.