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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
19th
Ranking in IT Infrastructure Monitoring
27th
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
17
Ranking in other categories
Server Monitoring (11th), Cloud Monitoring Software (20th)
Nagios Core
Ranking in Network Monitoring Software
12th
Ranking in IT Infrastructure Monitoring
11th
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 October 2025, in the Network Monitoring Software category, the mindshare of Icinga is 2.8%, down from 3.0% compared to the previous year. The mindshare of Nagios Core is 2.5%, down from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios Core2.5%
Icinga2.8%
Other94.7%
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

"Macros and the ability to connect it to Google Maps are valuable features."
"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."
"Icinga has multiple automation and integration features. There is an API for everything and a web UI for configurations. The APIs enable you to automate tasks in Icinga. We can also use plugins to talk to the API. The Icinga Director talks to a database in the background, and you can import settings from the CMDB to all systems in Icinga."
"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."
"An affordable solution for small organizations to do basic network monitoring."
"The value of Icinga is that it has hundreds of plugins, so it's really easy to monitor pretty much anything."
"It is really easy in Icinga to create your own plugin and integrate it without any fuss. And it works just perfectly fine."
"The good thing about Nagios Core is it covers everything."
"The solution's most valuable feature is that it offers proper alerting capabilities."
"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."
"Our customers like that Nagios Core is an open source solution. It can be customized to our customers' specific needs."
"The application performance monitoring feature is valuable."
"The most valuable feature is the performance parameters of the system."
"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."
"Alert calls occur anytime a service goes down or a matrix is difficult and that helps us to quickly restore service and transfer work."
 

Cons

"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."
"The installation and configuration are very complex."
"The user interface should be improved."
"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."
"Icinga is a complex solution that's hard to learn. It's a powerful product for monitoring, but new users will have a hard time figuring out what to do."
"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."
"Icinga’s automation could be improved."
"At this time, the layout of the website is a bit difficult. It should be more user-friendly for changing the background and logos."
"The NetEase reporting structure needs improvement, especially the availability report, which is weak."
"Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."
"The dashboard should be improved."
"I believe Nagios Core will need to provide an option for big data platforms in the future."
"The mapping is a little hard."
"The core version is no match for the XI version."
"t was a little hard to get our setup represented in the configuration."
"The user interface could be more interactive because it is pretty basic."
 

Pricing and Cost Advice

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

By visitors reading reviews
Comms Service Provider
13%
Educational Organization
11%
Financial Services Firm
10%
Computer Software Company
10%
Computer Software Company
13%
Manufacturing Company
9%
Comms Service Provider
9%
Government
9%
 

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 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: September 2025.
872,655 professionals have used our research since 2012.