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Nagios Core on CentOS vs Ubuntu Linux comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
4.2
Nagios Core on CentOS enhances ROI by reducing downtime and manual monitoring, achieving substantial financial and efficiency gains.
Sentiment score
6.0
Ubuntu Linux offers cost savings, high returns, stability, and security, making it a valuable, cost-effective alternative to licensed software.
We definitely see a positive ROI using Nagios Core on CentOS, as while it does not have licensing costs, the real return came from reducing downtime, faster issue resolution, and improved operational efficiency.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
Nagios Core on CentOS lets me know about these issues, and I can recover the system or stop the disaster, saving both money and time.
System Software Support Engineer at a tech vendor with 11-50 employees
With proactive alerts, unplanned downtime dropped by around thirty to forty percent.
Team Lead, Service DevOps at a computer software company with 51-200 employees
 

Customer Service

Sentiment score
4.9
Most CentOS users rely on community resources for Nagios Core support, while enterprise subscriptions offer quicker technical assistance.
Sentiment score
6.5
Ubuntu Linux users appreciate efficient support but often rely on community resources and documentation for effective self-assistance.
Because of the documentation regarding installation, configuration, and troubleshooting, it helped a lot and avoids confusion.
Infrastructure Analyst at a tech vendor with 10,001+ employees
Enterprise support provides assistance for installation, upgrade guidance, and troubleshooting configuration help.
Infrastructure Specialist at IBM
For Nagios Core on CentOS, customer support is community-driven rather than vendor-driven.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
They responded well, understood that the issue was not on my end, and provided a patch within two days.
Manging Director at Winworth UK
The community around Ubuntu Linux is beneficial, providing answers to questions and assisting with issues.
Bachelor of Engineering at Vaasan ammattikorkeakoulu VAMK University of Applied Sciences
Ubuntu Linux has a comprehensive knowledge base for self-help.
Techincal Support Engineer at Ibits Tech Solutions
 

Scalability Issues

Sentiment score
4.4
Nagios Core on CentOS suits small to mid-size setups, with larger environments needing extra planning and potential hardware upgrades.
Sentiment score
7.1
Ubuntu Linux is highly scalable for servers, excelling in diverse industries and popular for cloud and on-premises applications.
Scaling to large environments requires additional architecture and planning.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
Scalability is easy, making it simple to scale up as my organization grows and needs to monitor more servers or services.
Senior IT Engineer at a tech vendor with 10,001+ employees
Its scalability is overall good for medium and large enterprise environments, though it requires tuning at a very large scale.
Infrastructure Specialist at IBM
Ubuntu Linux itself is a lightweight OS, so it's very convenient to scale it up to any form needed.
Associate Cloud Operations Engineer at a tech vendor with 501-1,000 employees
In a server environment, it can seamlessly adapt to increased customer demand.
Bachelor of Engineering at Vaasan ammattikorkeakoulu VAMK University of Applied Sciences
So far, I do not have any issues related to security in Ubuntu Linux.
System Administrator at mmcytech
 

Stability Issues

Sentiment score
7.7
Nagios Core on CentOS is stable and reliable, yet some users seek UI improvements and consider alternatives like Grafana.
Sentiment score
7.9
Ubuntu Linux is praised for its stability, reliability, minimal maintenance, and efficient updates, though challenges may arise in virtual environments.
Nagios Core on CentOS is stable and reliable, especially for long-running monitoring environments.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
In my experience, Nagios Core on CentOS is very stable and continues to function well.
Team Lead, Service DevOps at a computer software company with 51-200 employees
Nagios Core on CentOS is improving its reliability and accuracy to get nice precision to the different services and correct monitoring.
Chief Information Officer at Cordero y Asociados S.L. - Cordero Informáticos
The system has been completely stable, which makes it deserve a perfect score.
BA at a computer software company with 11-50 employees
Ubuntu Linux is extremely stable and maintains uptime effectively.
Manging Director at Winworth UK
If updates happen frequently, no system would be stable without tuning it every time there's an update.
Associate Cloud Operations Engineer at a tech vendor with 501-1,000 employees
 

Room For Improvement

Nagios Core on CentOS needs UI, documentation, automation improvements, visual updates, better integrations, and enhanced performance metrics for users.
Ubuntu Linux faces challenges in user-friendliness, stability, compatibility, and integration, demanding improvements in support and enterprise tools.
For large environments, scaling Nagios Core on CentOS requires additional architectural planning, and tuning alerts is critical; otherwise, teams start ignoring notifications.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
The learning curve for new users adopting Nagios Core on CentOS is challenging, primarily due to the limited documentation available on the internet regarding how to install and maintain it.
System Software Support Engineer at a tech vendor with 11-50 employees
Plugins for monitoring services of an F5 load balancer or different other hardware devices such as Imperva WAF would be very useful.
Cloud Dev Ops Engineer at a marketing services firm with 10,001+ employees
There is a push towards integrating AI into software for various purposes like video and sound processing.
Manging Director at Winworth UK
During a migration project that I was handling, Ubuntu Linux was not completely compatible for the migration process from one application to another. This is an area they could improve in migrating from minor versions to major versions.
Associate Cloud Operations Engineer at a tech vendor with 501-1,000 employees
Stability issues occur when integrating new components due to physical or technical challenges.
Bachelor of Engineering at Vaasan ammattikorkeakoulu VAMK University of Applied Sciences
 

Setup Cost

Nagios Core on CentOS is popular for being cost-effective and easy to install, despite some indirect maintenance costs.
Ubuntu Linux offers cost-effective adoption with a free core version, optional subscription support, and significant resource efficiency for enterprises.
The main factors that influenced my decision to choose Nagios Core on CentOS over other monitoring solutions are mainly its free of cost, open source nature, which saves a lot of money, and it being easy to install, so even junior staff can set it up straight away to start monitoring.
Infrastructure Analyst at a tech vendor with 10,001+ employees
Regarding pricing, setup cost, and licensing, I used the open-source version, so the setup cost is zero and no license is required.
Team Lead, Service DevOps at a computer software company with 51-200 employees
My experience with pricing, setup cost, and licensing is that it is good, with very cheap costs.
Senior Business Analyst at Netcore Cloud
For an enterprise-wide scalable operating system with professional services, you can select Ubuntu Linux at a reasonable price.
Owner at a computer software company with 1-10 employees
The setup cost is free.
Head of mission at CapHornier
Ubuntu Linux is open-source, leading to cost savings through its free availability.
Bachelor of Engineering at Vaasan ammattikorkeakoulu VAMK University of Applied Sciences
 

Valuable Features

Nagios Core on CentOS offers customizable monitoring, real-time alerts, and scalability, ideal for cost-effective infrastructure management.
Ubuntu Linux offers security, stability, and user-friendliness, with strong community support, cost-effectiveness, and excellent compatibility for various users.
The best features Nagios Core on CentOS offers are the capabilities to monitor both Windows and Linux services, as well as the ability to write custom plugins to monitor different services if the needed plugins are not provided by default.
Cloud Dev Ops Engineer at a marketing services firm with 10,001+ employees
The biggest strength of Nagios Core on CentOS is its plugin architecture, which is extremely flexible because plugins are scripts or binaries that return a standard output and exit code.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
Nagios Core on CentOS has positively impacted my organization by significantly reducing downtime through timely alerts configured according to my specifications.
Team Lead, Service DevOps at a computer software company with 51-200 employees
Ubuntu Linux's open-source nature supports community contributions, bolstering its development and support ecosystem.
Bachelor of Engineering at Vaasan ammattikorkeakoulu VAMK University of Applied Sciences
Ubuntu Linux supports remote troubleshooting via SSH, allowing connection from anywhere, which is beneficial for troubleshooting server issues.
Techincal Support Engineer at Ibits Tech Solutions
The updates in terms of security are very fast, and it is very easy to deploy.
manager at SSDU Innovations
 

Categories and Ranking

Nagios Core on CentOS
Ranking in Operating Systems (OS) for Business
23rd
Average Rating
8.2
Reviews Sentiment
4.9
Number of Reviews
15
Ranking in other categories
No ranking in other categories
Ubuntu Linux
Ranking in Operating Systems (OS) for Business
2nd
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
151
Ranking in other categories
OpenStack (1st)
 

Mindshare comparison

As of September 2026, in the Operating Systems (OS) for Business category, the mindshare of Nagios Core on CentOS is 0.2%, up from 0.0% compared to the previous year. The mindshare of Ubuntu Linux is 8.1%, down from 11.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Ubuntu Linux8.1%
Nagios Core on CentOS0.2%
Other91.7%
Operating Systems (OS) for Business
 

Featured Reviews

reviewer2836233 - PeerSpot reviewer
Infrastructure Analyst at a tech vendor with 10,001+ employees
Monitoring has reduced outages and improves proactive issue resolution across our infrastructure
Regarding complexity, I think there is no feature like InfluxDB AI, so it may require more expertise to configure. There are also some migration challenges in adopting the new dashboards, so it takes some time to train the staff, but it is not a big concern. I think it is better to add some advanced features. I do not think there are so many things that need to be improved in Nagios Core on CentOS. If it is better to customize the dashboard or if we can get something like a modern view, it will be helpful for the dashboard. I felt very happy with Nagios Core on CentOS. Why I took off one point is that I think it is better suited for a small or medium setup. If large enterprises can use Nagios Core on CentOS, it will be helpful. It also requires manual editing of the config file, so it is a little bit time-consuming. The web interface is functional, but compared to some other latest AI monitoring platforms, it is a little bit lacking. I think the AI platform would score higher, but it is good. The reporting is just basic, so if we compare it with Grafana, it needs richer insights.
reviewer2728158 - PeerSpot reviewer
Associate Cloud Operations Engineer at a tech vendor with 501-1,000 employees
Good compatibility and improvement needed in migration process
For long-term support, it has been good because in most enterprise environments, people still use Ubuntu Linux sixteen, which is quite obsolete now. Other enterprise versions do not support obsolete systems, so supportability is good in terms of Ubuntu Linux. For sustainability, it's quite a significant point of view for every organization. For us, Ubuntu Linux is the preferable way. For others, it might not be, so that is quite a subjective matter itself. The pinpoint of the problem is that they take time because they need specific information. We need to go to AWS first, and then they'll contact the Ubuntu Linux support team itself. This creates a two-way hop for us, which is why it's not that great. It's not really Ubuntu Linux's problem but rather the way we are accessing Ubuntu Linux. The migration part when migrating an application or one version of Ubuntu Linux to another is quite hectic. During the process, one or many applications might crash. That is something they could handle themselves, but I don't think that's something Ubuntu Linux will look into. During a migration project that I was handling, Ubuntu Linux was not completely compatible for the migration process from one application to another. This is an area they could improve in migrating from minor versions to major versions.
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Top Industries

By visitors reading reviews
Construction Company
34%
Financial Services Firm
9%
Outsourcing Company
8%
Comms Service Provider
8%
Comms Service Provider
11%
University
9%
Financial Services Firm
9%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise4
Large Enterprise10
By reviewers
Company SizeCount
Small Business85
Midsize Enterprise22
Large Enterprise54
 

Questions from the Community

What is your experience regarding pricing and costs for Nagios Core on CentOS?
I do not handle the pricing, setup cost, and licensing for Nagios Core on CentOS as my manager takes care of that.
What needs improvement with Nagios Core on CentOS?
Nagios Core on CentOS requires human intervention for monitoring. We take 24/7 monitoring on Nagios Core on CentOS, which is a drawback. We must monitor the services in a 24/7 environment, and I be...
What is your primary use case for Nagios Core on CentOS?
We use Nagios Core on CentOS for server monitoring purposes, including ping response and other health checks. We monitor whether the server's health is fine or not. Nagios Core on CentOS operates w...
Which would you choose - Ubuntu Linux or Oracle Linux?
Ubunto Linux is a complete Linux operating system that is freely available with both community and professional support. This solution is suitable for both desktop and server use. It has a very app...
What is your experience regarding pricing and costs for Ubuntu Linux?
Ubuntu Linux is almost free, but it has some professional services that require payment if you choose to use them. For a low-cost application server, Ubuntu Linux is a good choice, or for an enterp...
What needs improvement with Ubuntu Linux?
I was thinking that Ubuntu Linux and Windows would work on the same machine. With Windows 11, they came together, so it is a good thing. On the GUI, when I use SSH or PuTTY or what is called a cons...
 

Also Known As

No data available
Ubuntu
 

Overview

 

Sample Customers

Information Not Available
Samsung, eBay, AT&T, Walmart, Cisco, Time Warner Cable, Bloomberg, Best Buy, Dell, Intel, Microsoft, Ericsson, Orange, Wells Fargo
Find out what your peers are saying about Nagios Core on CentOS vs. Ubuntu Linux and other solutions. Updated: September 2026.
913,076 professionals have used our research since 2012.