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Pros & Cons summary

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Prominent pros & cons

PROS

Nagios Core on CentOS aids organizations budget-wise by being an open-source tool.
It improves system availability and reduces downtime for organizations like Infosys.
It offers complete infrastructure monitoring with real-time alerting and notifications.
It effectively monitors a variety of services using both default and custom plugins.
It reduces downtime and enhances business visibility, aiding organizational growth.

CONS

Application monitoring feature is useful but not great, with room for improvement.
Significant improvements are needed in automation, scalability, and usability.
An official Docker image from Nagios Core could enhance its functionality.
More plugins should be generated by Nagios, especially for monitoring services like F5 load balancers or Imperva WAF.
It is better suited for small or medium setups.
 

Nagios Core on CentOS Pros review quotes

reviewer2836233 - PeerSpot reviewer
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.
reviewer2834166 - PeerSpot reviewer
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.
SG
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.
Find out what your peers are saying about Supported Images, Alpine Linux, AlmaLinux and others in Operating Systems (OS) for Business. Updated: May 2026.
893,221 professionals have used our research since 2012.
reviewer2834409 - PeerSpot reviewer
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.
IA
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.
Prateek_Singh - PeerSpot reviewer
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.
 

Nagios Core on CentOS Cons review quotes

reviewer2836233 - PeerSpot reviewer
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.
reviewer2834166 - PeerSpot reviewer
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.
SG
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.
Find out what your peers are saying about Supported Images, Alpine Linux, AlmaLinux and others in Operating Systems (OS) for Business. Updated: May 2026.
893,221 professionals have used our research since 2012.
reviewer2834409 - PeerSpot reviewer
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.
IA
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.
Prateek_Singh - PeerSpot reviewer
Senior Business Analyst at Netcore Cloud
Apr 28, 2026
Nagios Core on CentOS is not stable.

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