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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
17th
Ranking in IT Infrastructure Monitoring
25th
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
17
Ranking in other categories
Server Monitoring (12th), Cloud Monitoring Software (18th)
Nagios Core
Ranking in Network Monitoring Software
10th
Ranking in IT Infrastructure Monitoring
9th
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 July 2025, in the Network Monitoring Software category, the mindshare of Icinga is 3.3%, up from 2.5% compared to the previous year. The mindshare of Nagios Core is 2.8%, down from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

Harrison Bulley - PeerSpot reviewer
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.
Nishith-Vyas - PeerSpot reviewer
Valuable reporting and alert system with room for PDF export improvements
The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.

Quotes from Members

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

Pros

"The apply rules feature saves a lot of time."
"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."
"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."
"It is really easy in Icinga to create your own plugin and integrate it without any fuss. And it works just perfectly fine."
"An affordable solution for small organizations to do basic network monitoring."
"Icinga does the job and is fairly stable."
"The drafts are easy but what I like about Icinga is that there are many add-ons that you can download."
"This solution has a self-healing handler where if the service is down, it is automatically restarted."
"Provides timely notifications."
"The solution's most valuable feature is that it offers proper alerting capabilities."
"I like the way the solution sends alerts and how it keeps on escalating them."
"It is fairly easy to set up, and we can monitor pretty much everything we want to."
"I like that it's very simple to install, easy to manage and deploy, and easy to use for monitoring."
"We use the product to monitor server applications."
"Other products are good but from the configuration point of view Nagios is really very lightweight. The price is really good in my opinion. Another important thing is that my Nagios engine still works with Dual core 8GB ram for the last 10 years."
"The most valuable feature is the performance parameters of the system."
 

Cons

"Icinga’s automation could be improved."
"The user interface should be improved."
"The tool currently fails to provide notifications to users."
"There is room for improvement in multi-tenancy. It's not perfect, not even really good. It's average, but it should be improved."
"One of the areas that are frustrating is remote monitoring for more than one machine."
"At this time, the layout of the website is a bit difficult. It should be more user-friendly for changing the background and logos."
"It needs Trap SNMP. I saw the documentation for Zabbix, that it has its own built-in product which handles SNMP traps, and there's nothing similar in Icinga or Nagios. I think this feature is most important for me."
"We have found some problems with Nagios, and support isn't very responsive."
"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."
"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."
"The scalability needs improvement, it's not scalable at this time."
"It is a bit slow due to latency."
"The mapping is a little hard."
"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"t was a little hard to get our setup represented in the configuration."
 

Pricing and Cost Advice

"It is cost-effective, and the return on investment can be very interesting because the price is low."
"It's an open-source solution."
"This is an open-source solution with paid support."
"We're using the free version of Icinga."
"The solution is free to use."
"The solution is cheap."
"Even though Icinga's financial cost is low, it is an expensive product regarding the resources required to maintain and operate it."
"The product is inexpensive compared to other DBM products."
"I would rate the solution's pricing an eight out of ten."
"The enterprise version has technical support. The version we are using is free."
"Nagios Core is a cheap solution."
"Nagios Core is free to use."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
"The product is cheaply priced."
"It's free."
"We are using the free version of Nagios Core."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
11%
Comms Service Provider
11%
Manufacturing Company
8%
Computer Software Company
15%
Government
9%
Manufacturing Company
9%
Financial Services Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Icinga?
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.
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 do you like most about Nagios Core?
What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.
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.
 

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: July 2025.
861,524 professionals have used our research since 2012.