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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
27th
Ranking in IT Infrastructure Monitoring
31st
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
17
Ranking in other categories
Server Monitoring (12th), Cloud Monitoring Software (26th)
Nagios Core
Ranking in Network Monitoring Software
11th
Ranking in IT Infrastructure Monitoring
10th
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 May 2026, in the Network Monitoring Software category, the mindshare of Icinga is 1.3%, down from 3.4% compared to the previous year. The mindshare of Nagios Core is 1.6%, down from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.6%
Icinga1.3%
Other97.1%
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 value of Icinga is that it has hundreds of plugins, so it's really easy to monitor pretty much anything."
"This solution has a self-healing handler where if the service is down, it is automatically restarted."
"If you have a small infrastructure or a small number of devices that you want to monitor, then I think it's a good solution."
"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."
"We monitor all, starting from UPS to international mail chains."
"The value of Icinga is that it has hundreds of plugins, so it's really easy to monitor pretty much anything."
"Macros and the ability to connect it to Google Maps are valuable features."
"Icinga does the job and is fairly stable."
"Nagios doesn't get the respect it deserves; most likely due to the fact that it doesn't have a licensing cost."
"The reporting structure and the feature set are valuable to me."
"Reliability Security Flexibility Functionality Availability - controllability anywhere and with different methods"
"We are using Nagios Core on a VM and it's working very well, even though the specs of the VM are very low because it doesn't require much storage."
"This is a fit for purpose product which means that if you have a definite list of requirements and are not willing, or unable, to spend money on big enterprise tools, then Nagios is a tool to go to."
"The most valuable features are the reports and the way it generates the report in a graphical manner."
"Inspite of this limitation it is a fantastic product to use at zero cost"
"You should really try Nagios; it will help a lot and I have found that it is the best buddy for system admins."
 

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 tool currently fails to provide notifications to users."
"The connection between Icinga and Icinga Web."
"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 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."
"This solution is not scalable at all. If you want to add an AI, or if you wanted to monitor different types of metrics, you won't get the most out of it."
"Application level monitoring is limited."
"The mapping is a little hard."
"Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."
"They should simplify the features so it becomes easier to setup out of the box."
"Nagios Core can improve the graphical interface, it would make things a little easier."
"Don't use it. If you're starting from scratch, there are products that scale better and perform better, and they use the same plugin syntax as they were initially Nagios forks."
"The initial setup was complex, mainly because it was in Linux and had many packages that we're not used to."
 

Pricing and Cost Advice

"We're using the free version of Icinga."
"The product is inexpensive compared to other DBM products."
"It is cost-effective, and the return on investment can be very interesting because the price is low."
"The solution is free to use."
"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 cheap."
"It's an open-source solution."
"This is an open-source solution with paid support."
"Nagios Core is a cheap solution."
"The product is cheaply priced."
"The enterprise version has technical support. The version we are using is free."
"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."
"Nagios Core is an open source solution, and there are no licensing fees."
"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."
"It's free."
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Top Industries

By visitors reading reviews
Educational Organization
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Manufacturing Company
10%
Comms Service Provider
10%
Computer Software Company
8%
Financial Services Firm
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 Enterprise23
 

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: April 2026.
893,221 professionals have used our research since 2012.