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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

"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."
"Macros and the ability to connect it to Google Maps are valuable features."
"People should know that it is simple and advanced."
"It is really easy in Icinga to create your own plugin and integrate it without any fuss. And it works just perfectly fine."
"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."
"We have found the solution to be stable."
"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 drafts are easy but what I like about Icinga is that there are many add-ons that you can download."
"The poller is really good, I can easily implement new stuff and it is scalable."
"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."
"What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services."
"The solution is very complete and mostly easy to manage."
"Dashboard provides monitor of total assets."
"Nagios allows IT staff and end-users to see the status of critical services on the network and can alert and notify selected users if critical services fail, reducing the mean time to recover."
"Nagios Core is a great solution for monitoring pretty much any size of deployment but you do need to know your way around a Linux system to set it up and run it."
"The solution is quite efficient."
 

Cons

"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."
"Network Discovery capabilities would be extremely helpful."
"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."
"Scalability is problematic. If you have a stable environment it's good, but if the environment is growing, I had some problems with Icinga."
"One of the areas that are frustrating is remote monitoring for more than one machine."
"There is room for improvement in multi-tenancy. It's not perfect, not even really good. It's average, but it should be improved."
"Nagios Core would benefit from aggregations if a particular server goes down."
"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."
"The configuration and reporting modules need to be improved."
"The interface could be improved."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
"I would like to see a much better Nagios Manager GUI that can support all type of configuration items, and advance search options."
"Some of the reporting functionality is a bit basic and configuration is a chore although by the use of NagiosQL this can be made a lot easier."
"The dashboard and monitoring features could be improved."
 

Pricing and Cost Advice

"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."
"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."
"The solution is free to use."
"The solution is cheap."
"It's free."
"Nagios Core is a cheap solution."
"The enterprise version has technical support. The version we are using is free."
"We are using the open-source, unpaid version."
"Most the plugin features are 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."
"I would rate the solution's pricing an eight out of ten."
"The product is cheaply priced."
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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 Enterprise8
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
 

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.
894,998 professionals have used our research since 2012.