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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

"Icinga2 was designed to delegate, distribute and balance tasks between several nodes."
"An affordable solution for small organizations to do basic network monitoring."
"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 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."
"People should know that it is simple and advanced."
"This solution has a self-healing handler where if the service is down, it is automatically restarted."
"Macros and the ability to connect it to Google Maps are valuable features."
"The most valuable feature depends on the project. It's great if you need to check to ensure a service is running 24/7. I can use the full solution for free, and it's flexible. If I need to add a dashboard, I can integrate it with Nagios. Cloud synchronization is wonderful."
"Its an awesome product to use."
"The good thing about Nagios Core is it covers everything."
"Open source and very flexible, with a large ecosystem of tools and custom monitors built up around Nagios."
"What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services."
"Alert calls occur anytime a service goes down or a matrix is difficult and that helps us to quickly restore service and transfer work."
"I like the way the solution sends alerts and how it keeps on escalating them."
"The application performance monitoring feature is valuable, and we primarily use it for user experience monitoring and determining which layer the problem happened to resolve it."
 

Cons

"Sometimes, it is very hard to keep an overview of what's happening."
"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."
"Icinga’s automation could be improved."
"One of the areas that are frustrating is remote monitoring for more than one machine."
"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."
"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."
"One thing that Icinga lacks is the capability to create advanced and customized dashboards within the tool itself."
"We have found some problems with Nagios, and support isn't very responsive."
"Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers."
"When compared to earlier versions, it looks like 4.x has lost the statusmap.cgi module."
"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"There is room for improvement in the graphics."
"The scalability needs improvement, it's not scalable at this time."
"The alerting mechanism in Nagios Core could be improved."
"Nagios SLA. I'm currently working on Nagios Digger, which has many code-level problems."
"I would like to see a much better Nagios Manager GUI that can support all type of configuration items, and advance search options."
 

Pricing and Cost Advice

"The solution is cheap."
"This is an open-source solution with paid support."
"The product is inexpensive compared to other DBM products."
"It's an open-source solution."
"Even though Icinga's financial cost is low, it is an expensive product regarding the resources required to maintain and operate it."
"It is cost-effective, and the return on investment can be very interesting because the price is low."
"The solution is free to use."
"We're using the free version of Icinga."
"The product is cheaply priced."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
"Nagios Core is free to use."
"Most the plugin features are free."
"The enterprise version has technical support. The version we are using is free."
"Nagios Core is an open source solution, and there are no licensing fees."
"The solution is expensive."
"We are using the open-source, unpaid 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.
912,930 professionals have used our research since 2012.