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Icinga vs Nagios Core comparison

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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
42nd
Ranking in IT Infrastructure Monitoring
49th
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
17
Ranking in other categories
Server Monitoring (15th), Cloud Monitoring Software (34th)
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
 

Mindshare comparison

As of September 2026, in the Network Monitoring Software category, the mindshare of Icinga is 1.1%, down from 3.0% compared to the previous year. The mindshare of Nagios Core is 1.3%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.3%
Icinga1.1%
Other97.6%
Network Monitoring Software
 

Featured Reviews

reviewer2292201 - PeerSpot reviewer
Innovation Service Manager at a tech services company with 201-500 employees
Easy to use, and it's possible to customize the product as per the needs we may have but average multi-tenancy aspect
It's supported by the community. We use Icinga, which is not part of the Open-Source platform but is wrapped into a commercial solution from another provider, a local provider in Italy. Icinga is an open-source platform, so it is supported by the community. It's quite easy to use, and it's possible to customize the product as per the needs we may have. So it's not expensive, and it's quite a general purpose. We can easily monitor any kind of infrastructure we encounter. The ability to customize scripts and build your own queries to request information from the infrastructure elements you want to monitor. This level of personalization and customization is highly appreciated. The alerting is the same as any other monitoring platform. It's not a "wow" feature that has changed our lives, but it's perfectly adequate.
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

"I use it for monitoring infrastructure and it was very good for that issue."
"The most valuable feature is one that not many are even aware of, as Icinga has a self-healing event handler where if the service is down, it is automatically restarted, and you can configure the handler to take action after the critical alarm without human interaction."
"We monitor all, starting from UPS to international mail chains."
"The apply rules feature saves a lot of time."
"Icinga2 was designed to delegate, distribute and balance tasks between several nodes."
"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 would recommend Icinga; it's an open-source solution, it's quite easy and simple to use, and checks can be run with Python code and Shell Script code."
"Macros and the ability to connect it to Google Maps are valuable features."
"The reporting structure and the feature set are valuable to me."
"You should really try Nagios; it will help a lot and I have found that it is the best buddy for system admins."
"Alert calls occur anytime a service goes down or a matrix is difficult and that helps us to quickly restore service and transfer work."
"We have the ability right now to see and create reports to tell whether or not we're meeting our SLAs on our production servers, through it."
"The most valuable feature of Nagios Core is the ability to check the availability of the server for network connectivity. Additionally, the interface is good."
"The solution's most valuable feature is that it offers proper alerting capabilities."
"This product covers all of our infrastructure health checks, and has triggers for us to alert us to any unusual behaviour of the monitored systems."
"Using Nagios, I'm managing more than 1000 services, which involves the following operating nodes: IBM AIX, Red Hat Enterprise Linux, HP-Unix, Windows enterprise-grade OS, Cisco router/switches, FortiGate and WatchGuard firewalls, APC UPS systems, and many more."
 

Cons

"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."
"We have found some problems with Nagios, and support isn't very responsive."
"The user interface should 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."
"One of the areas that are frustrating is remote monitoring for more than one machine."
"Scalability is problematic. If you have a stable environment it's good, but if the environment is growing, I had some problems with Icinga."
"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 connection between Icinga and Icinga Web."
"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"Nagios Core can improve the graphical interface, it would make things a little easier."
"The mapping is a little hard."
"Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers."
"This is the open source product, so it's a toolkit rather than a complete solution."
"We're using the free version, which limits us in terms of the things that we can do."
"The alerting mechanism in Nagios Core could be improved."
"Cloud monitoring is an area for improvement because there aren't too many plugins available."
 

Pricing and Cost Advice

"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."
"This is an open-source solution with paid support."
"We're using the free version of Icinga."
"It is cost-effective, and the return on investment can be very interesting because the price is low."
"It's an open-source solution."
"The product is inexpensive compared to other DBM products."
"The solution is cheap."
"It's free."
"The product is cheaply priced."
"I would rate the solution's pricing an eight out of ten."
"Nagios Core is a cheap solution."
"The solution is expensive."
"Most the plugin features are free."
"Nagios Core is free to use."
"We are using the free version."
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Top Industries

By visitors reading reviews
Educational Organization
14%
Comms Service Provider
12%
University
10%
Financial Services Firm
9%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
7%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise8
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
 

Questions from the Community

Ask a question
Earn 20 points
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: September 2026.
912,753 professionals have used our research since 2012.