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CentOS vs Nagios Core on CentOS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 15, 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
6.0
CentOS offers significant ROI through cost savings on servers, time efficiency, and community support, benefiting IT budgets.
Sentiment score
4.0
Nagios Core on CentOS enhances efficiency, reducing downtime by up to 40% and saving up to $50,000 annually.
I have seen a return on investment, particularly in terms of money saved because I do not pay for the servers.
Technical Lead InfraOps at a tech services company with 501-1,000 employees
The money saved was significant, approximately fifteen percent of our IT budget.
Senior Support Engineer at a computer software company with 201-500 employees
It saved a lot of time through troubleshooting, which gives us substantial room for improvement in terms of fixing things.
Senior Technical Support Engineer at a tech vendor with 11-50 employees
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
5.5
CentOS depends on community support and internet resources for issue resolution, contrasting with Red Hat's commercial support model.
Sentiment score
5.0
Nagios Core on CentOS offers community-driven support with forums, while enterprise subscribers get additional technical help.
I would rate the customer support for CentOS a 10 on a scale of 1 to 10.
Senior Technical Support Engineer at a tech vendor with 11-50 employees
I've seen many people across the globe interacting, and when users encounter issues, the community provides solutions.
Presales Engineer at Crayon AS
I would rate the documentation about eight in terms of usefulness.
Technical Operations Manager at a wholesaler/distributor with 10,001+ employees
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
 

Scalability Issues

Sentiment score
7.1
CentOS is scalable, cost-effective, and adaptable, excelling in both small and large deployments across diverse applications.
Sentiment score
4.8
Nagios Core on CentOS is stable and scalable for small to medium enterprises, with options for larger deployments.
CentOS is scalable and user-friendly without requiring complex configurations.
Presales Engineer at Crayon AS
It allows users to scale resources vertically for upgrading hardware and horizontally by adding more servers, making it suitable for modern web hosting and containerized applications.
IT Infrastructure Engineer at Trigyn Technology
CentOS's scalability for my organization has handled growth and changing needs smoothly.
Senior Technical Support Engineer at a tech vendor with 11-50 employees
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
 

Stability Issues

Sentiment score
8.0
CentOS is highly stable and reliable, with excellent performance and continuous uptime, making it ideal for stable environments.
Sentiment score
7.6
Nagios Core on CentOS is stable and reliable, but users desire improved UI and consider alternatives like Grafana.
CentOS is stable, reliable, flexible, and very useful.
IT Infrastructure Engineer at Trigyn Technology
CentOS's simplicity and stability make it easy to use.
Presales Engineer at Crayon AS
I believe CentOS is stable, but we are gradually moving away from it.
Technical Operations Manager at a wholesaler/distributor with 10,001+ employees
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
 

Room For Improvement

CentOS users seek better support, security, stability, and user interface due to recent changes, prompting interest in alternatives.
Nagios Core on CentOS needs UI updates, better documentation, scalability enhancements, and improved integration for enterprise environments.
The documentation and support could be improved, along with compatibility with newer hardware as hardware continually evolves over time.
Presales Engineer at Crayon AS
Kernel parameters, sysctl config details, tuned profiles, process prioritization, optimized disk, and input scheduler choice are all points for performance optimization.
IT Infrastructure Engineer at Trigyn Technology
CentOS RADIUS server handles sensitive authentication data, so improving security is the priority.
Technical person at a university with 1,001-5,000 employees
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
 

Setup Cost

CentOS is seen as a cost-effective enterprise solution, due to its open-source nature, eliminating licensing fees.
CentOS Nagios Core users value its open-source cost-effectiveness, ease of setup, and minimal managed indirect costs for monitoring.
There was no cost in terms of deploying it or getting the license for it.
Senior Technical Support Engineer at a tech vendor with 11-50 employees
Regarding pricing, setup cost, and licensing for CentOS, there is no cost for licensing or setup pricing.
Devops Engineer at EDAG
CentOS is a free product with free updates.
Technical Operations Manager at a wholesaler/distributor with 10,001+ employees
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
 

Valuable Features

CentOS is favored for enterprise use due to its stability, ease of use, scalability, and strong community support.
Nagios Core on CentOS provides flexible, cost-effective monitoring through plugins, offering proactive issue detection and centralized visibility.
CentOS has helped me most through its enterprise-level stability.
Technical person at a university with 1,001-5,000 employees
The update cycle changed when CentOS was prioritized for updates, causing stability issues.
Technical Operations Manager at a wholesaler/distributor with 10,001+ employees
In my experience, the best feature that CentOS offers is the network configuration of a device from the command-line interface, which is exceptionally clean.
Senior Technical Support Engineer at a tech vendor with 11-50 employees
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
 

Categories and Ranking

CentOS
Ranking in Operating Systems (OS) for Business
7th
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
78
Ranking in other categories
No ranking in other categories
Nagios Core on CentOS
Ranking in Operating Systems (OS) for Business
22nd
Average Rating
8.4
Reviews Sentiment
5.0
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2026, in the Operating Systems (OS) for Business category, the mindshare of CentOS is 5.0%, up from 4.6% compared to the previous year. The mindshare of Nagios Core on CentOS is 0.2%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
CentOS5.0%
Nagios Core on CentOS0.2%
Other94.8%
Operating Systems (OS) for Business
 

Featured Reviews

Mohammad Wasif - PeerSpot reviewer
IT Infrastructure Engineer at Trigyn Technology
Has supported reliable deployments and simplified issue resolution in complex environments
The most suitable feature of CentOS is its exceptional stability, security, and long-term support, which make it a popular choice for enterprise and server environments. CentOS is widely recognized for providing a stable and secure platform, especially suited for server and mission-critical workloads. Whenever we face critical work, it is easy for our team to handle. For long-term support, each CentOS release generally guarantees long-term updates, ensuring reliability for extended periods. For package management, we use YUM and DNF in the new version for flexible and efficient software management. It depends on our users' requirements for installing CentOS. Licensing for CentOS is above my management details, so I am not aware of this information. CentOS always provides good feedback, is easy to handle, and easy to troubleshoot. The experience with CentOS OS has been very good over the last two months. I rate CentOS nine out of ten.
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.
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Comparison Review

it_user281973 - PeerSpot reviewer
Storage and VMware Expert at a comms service provider with 1,001-5,000 employees
Aug 24, 2017
It's improved our company's system environments that run Oracle databases.
Red Hat is mission critical to our environment Red Hat has improved the mission critical environments running Oracle databases, while CentOS has improved our web environment and MySQL. Oracle and SAP Environment and all HPC environments. 10 years No issues Very stable i don´t find any problem…
 

Top Industries

By visitors reading reviews
Manufacturing Company
10%
Financial Services Firm
9%
Comms Service Provider
8%
Computer Software Company
7%
Construction Company
38%
Comms Service Provider
9%
Financial Services Firm
9%
Computer Software Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise22
Large Enterprise30
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise4
Large Enterprise9
 

Questions from the Community

Which would you choose - RHEL (Red Hat Enterprise Linux) or CentOS?
Red Hat Enterprise Linux is fantastic. It is an inexpensive solution that has excellent security, performance, and stability, and also lots of features. I specifically like that the solution has fe...
What is your experience regarding pricing and costs for CentOS?
Regarding pricing, setup cost, and licensing for CentOS, there is no cost for licensing or setup pricing, so it is easy to set up and scale up the server.
What needs improvement with CentOS?
CentOS can be improved, but I have not yet faced any kind of issue or hectic problem.
What is your experience regarding pricing and costs for Nagios Core on CentOS?
My company is using the open-source version of Nagios Core on CentOS, so there were no pricing, installation, or licensing costs.
What needs improvement with Nagios Core on CentOS?
Nagios Core on CentOS needs to improve the templates to send messages to IT companies and also integrate with different systems or improve integrations with QNAP, Synology, Ubiquiti, and different ...
What is your primary use case for Nagios Core on CentOS?
My main use case for Nagios Core on CentOS is monitoring all the services of my customers, including CPU, RAM, different kinds of services, and certificates. With the trigger feature, I try to opti...
 

Also Known As

CentOS 7 (x86_64) - with Updates HVM
No data available
 

Overview

Find out what your peers are saying about CentOS vs. Nagios Core on CentOS and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.