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Nagios Core on CentOS pros and cons

Vendor: Supported Images
4.2 out of 5
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Pros & Cons summary

Nagios Core on CentOS provides instantaneous, accurate alerting, enhancing system availability and reducing downtime while being cost-effective as an open-source tool. It offers complete infrastructure monitoring and real-time alerts. However, improvements in automation, scalability, and usability are needed, and better integration with platforms like Kubernetes, OpenShift, QNAP, and Synology is crucial. Official Docker image support and additional plugins for diverse hardware monitoring would significantly benefit users.

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Prominent pros & cons

PROS

Alerting in Nagios Core on CentOS is instantaneous and more accurate.
Nagios Core on CentOS significantly impacts budgets positively as it is an open-source tool.
It improves system availability, reduces downtime, and enables proactive issue resolution.
Complete infrastructure monitoring and real-time alerting are key features.
It aids in reducing downtime by allowing faster identification and response to issues.

CONS

Nagios Core on CentOS needs improvement in automation, scalability, and usability.
Official Docker image support from Nagios Core would be beneficial.
Additional plugins for monitoring various hardware devices are needed.
Kubernetes and OpenShift platform support are required.
Enhanced integration with systems like QNAP, Synology, and Ubiquiti is necessary.
 

Nagios Core on CentOS Pros review quotes

reviewer2836233 - PeerSpot reviewer
reviewer2836233
Infrastructure Analyst at a tech vendor with 10,001+ employees
May 7, 2026
Nagios Core on CentOS is not just a technical tool; I feel that it helps the business grow a lot by reducing downtime and improving visibility.
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reviewer2834166 - PeerSpot reviewer
reviewer2834166
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
Apr 29, 2026
Using Nagios Core on CentOS had a significant positive impact on the organization at Infosys where I used it by improving system availability, reducing downtime, and enabling proactive issue resolution.
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Abhishek Shastri - PeerSpot reviewer
Abhishek Shastri
Infrastructure Specialist at IBM
May 14, 2026
Before Nagios Core on CentOS, we were getting alerts after the incident happened, but after implementing Nagios and integrating it with our existing system, we get alerts in real time, which allows us to easily identify the root cause and reduce mean time to repair.
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Buyer's Guide
Nagios Core on CentOS
May 2026
Free Report: Nagios Core on CentOS Reviews and More
Learn what your peers think about Nagios Core on CentOS. Get advice and tips from experienced pros sharing their opinions. Updated: May 2026.
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Bhupendra
Senior IT Engineer at a tech vendor with 10,001+ employees
May 4, 2026
Since using Nagios Core on CentOS, I have noticed specific improvements in downtime and how quickly my team can respond to issues.
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Daniel Cordero - PeerSpot reviewer
Daniel Cordero
Chief Information Officer at Cordero y Asociados S.L. - Cordero Informáticos
Jun 9, 2026
Nagios Core on CentOS has positively impacted my organization by reducing downtime in systems because sometimes there are services that were down, and with a trigger, I can start them again.
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SG
Satgaur God
Cloud Dev Ops Engineer at a marketing services firm with 10,001+ employees
Apr 27, 2026
Nagios Core on CentOS has positively impacted my organization because it is an open-source tool that has been very useful in monitoring different services using both custom plugins and the default plugins it provides.
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reviewer2834409 - PeerSpot reviewer
reviewer2834409
Team Lead, Service DevOps at a computer software company with 51-200 employees
Apr 29, 2026
The best features of Nagios Core on CentOS are complete infrastructure monitoring and real-time alerting and notifications.
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IA
Infantraj A
Infrastructure Analyst at a tech vendor with 10,001+ employees
Apr 28, 2026
Nagios Core on CentOS has positively impacted my organization by being very helpful budget-wise, as we rely on open source due to budget constraints for each division.
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Prateek_Singh - PeerSpot reviewer
Prateek_Singh
Senior Business Analyst at Netcore Cloud
Apr 28, 2026
Nagios Core on CentOS has impacted my organization positively because it is impactful to the business, and if the production server is down, Nagios Core on CentOS will check certain services, which impacts production.
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Hicham Lazrak - PeerSpot reviewer
Hicham Lazrak
It administrator at a consultancy with 11-50 employees
Jun 15, 2026
Nagios Core on CentOS has positively impacted my organization by moving our time toward a more advanced and modern monitoring solution, resulting in a better dashboard and tools to view system health in one dashboard and also optimizing alert handling.
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Nagios Core on CentOS Cons review quotes

reviewer2836233 - PeerSpot reviewer
reviewer2836233
Infrastructure Analyst at a tech vendor with 10,001+ employees
May 7, 2026
Why I took off one point is that I think it is better suited for a small or medium setup.
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reviewer2834166 - PeerSpot reviewer
reviewer2834166
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
Apr 29, 2026
Nagios Core on CentOS is very stable and reliable, but it can be significantly improved in terms of automation, scalability, and usability.
Read full review
Abhishek Shastri - PeerSpot reviewer
Abhishek Shastri
Infrastructure Specialist at IBM
May 14, 2026
In the modern world, we need Kubernetes and OpenShift support for Nagios, and it would be better to support the Kubernetes and OpenShift platforms.
Read full review
Buyer's Guide
Nagios Core on CentOS
May 2026
Free Report: Nagios Core on CentOS Reviews and More
Learn what your peers think about Nagios Core on CentOS. Get advice and tips from experienced pros sharing their opinions. Updated: May 2026.
DOWNLOAD NOW
899,917 professionals have used our research since 2012.
BB
Bhupendra
Senior IT Engineer at a tech vendor with 10,001+ employees
May 4, 2026
Nagios Core on CentOS can be improved by making it easier. Specifically, I would prefer the configuration and interface of Nagios Core on CentOS to be easier, more easily configured, and have an easy UI-based way to monitor all aspects.
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Daniel Cordero - PeerSpot reviewer
Daniel Cordero
Chief Information Officer at Cordero y Asociados S.L. - Cordero Informáticos
Jun 9, 2026
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 applications.
Read full review
SG
Satgaur God
Cloud Dev Ops Engineer at a marketing services firm with 10,001+ employees
Apr 27, 2026
To improve Nagios Core on CentOS, I believe that many more plugins could be generated by the Nagios organization, such as those for monitoring services of an F5 load balancer or different other hardware devices such as Imperva WAF.
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reviewer2834409 - PeerSpot reviewer
reviewer2834409
Team Lead, Service DevOps at a computer software company with 51-200 employees
Apr 29, 2026
Nagios Core on CentOS could be improved with an official Docker image from Nagios Core.
Read full review
IA
Infantraj A
Infrastructure Analyst at a tech vendor with 10,001+ employees
Apr 28, 2026
Regarding features, I have tried the application monitoring feature, which is not that great but still useful; for open source, it is very helpful, though there are improvement areas in the application side.
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Prateek_Singh - PeerSpot reviewer
Prateek_Singh
Senior Business Analyst at Netcore Cloud
Apr 28, 2026
Nagios Core on CentOS is not stable.
Read full review
Hicham Lazrak - PeerSpot reviewer
Hicham Lazrak
It administrator at a consultancy with 11-50 employees
Jun 15, 2026
One area that could be improved in Nagios Core on CentOS is the user interface.
Read full review
Show 2 more reviews (out of 12)

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Operating Systems (OS) for Business
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