Team Lead, Service DevOps at a computer software company with 51-200 employees
Real User
Top 10
Apr 29, 2026
Nagios Core on CentOS could be improved with an official Docker image from Nagios Core. Currently, I created my own Docker image and use it by mapping volumes to the Linux host. Having an official Docker image with a compose file or the ability to deploy into a Kubernetes environment would be beneficial. I would like to add feedback regarding the interface. If the interface could be made more similar to Grafana for checking historical data, that would be valuable. I already have the data available but must view it in log form. Making it more similar to Grafana would be helpful, though I understand this requires consideration from a product perspective. Overall, the solution looks good to me.
Senior HPC Engineer at a energy/utilities company with 10,001+ employees
Real User
Top 10
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. Most improvements for Nagios Core on CentOS revolve around reducing manual efforts and modernizing the ecosystem. Automating Nagios Core on CentOS configuration reduces human error and improves consistency across environments. Visualization is a major gap here, as modern tools provide much better dashboards compared to Nagios Core on CentOS. For large environments, scaling Nagios Core on CentOS requires additional architectural planning, and tuning alerts is critical; otherwise, teams start ignoring notifications. Integration of performance metrics helps move from reactive to predictive monitoring, but having too many custom plugins makes it hard to maintain. Nagios Core on CentOS is extremely powerful and flexible, but it requires effort to modernize with automation, better visualization, and a scalable architecture. It can still be very effective compared to newer monitoring tools, and it could benefit from a UI with tools such as Grafana, implementing distributed monitoring for scalability and fine-tuning alerting to reduce noise. These kinds of improvements would make it more efficient and easier to manage in large environments. Nagios Core on CentOS is strong technically but needs ecosystem improvement to match modern observability tools.
Infrastructure Analyst at a tech vendor with 10,001+ employees
Real User
Top 5
Apr 28, 2026
I believe Nagios Core on CentOS can be improved mainly by the granularity of the metrics; while most enterprise metrics are available, some complex ones are missing, and it would be beneficial to integrate more APIs for better data granularity, which newer users struggle to see. Regarding needed improvements, at this stage it is better, and I do not think any new things are required.
To improve Nagios Core on CentOS, we need to consolidate the many pages we see on the interface into a single page because we cannot check information across multiple pages efficiently.
Cloud Dev Ops Engineer at a marketing services firm with 10,001+ employees
Real User
Top 20
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. Having those plugins would be very useful.
Nagios Core on CentOS provides robust monitoring solutions for IT infrastructure, ensuring system reliability and performance. It offers flexibility and functionality tailored for enterprise needs.Nagios Core is instrumental in monitoring IT environments by offering alerts and reports on network activity, server performance, and application statistics. Running on CentOS enhances stability and security, appealing to administrators who require a reliable open-source monitoring tool. The...
Nagios Core on CentOS could be improved with an official Docker image from Nagios Core. Currently, I created my own Docker image and use it by mapping volumes to the Linux host. Having an official Docker image with a compose file or the ability to deploy into a Kubernetes environment would be beneficial. I would like to add feedback regarding the interface. If the interface could be made more similar to Grafana for checking historical data, that would be valuable. I already have the data available but must view it in log form. Making it more similar to Grafana would be helpful, though I understand this requires consideration from a product perspective. Overall, the solution looks good to me.
Nagios Core on CentOS is very stable and reliable, but it can be significantly improved in terms of automation, scalability, and usability. Most improvements for Nagios Core on CentOS revolve around reducing manual efforts and modernizing the ecosystem. Automating Nagios Core on CentOS configuration reduces human error and improves consistency across environments. Visualization is a major gap here, as modern tools provide much better dashboards compared to Nagios Core on CentOS. For large environments, scaling Nagios Core on CentOS requires additional architectural planning, and tuning alerts is critical; otherwise, teams start ignoring notifications. Integration of performance metrics helps move from reactive to predictive monitoring, but having too many custom plugins makes it hard to maintain. Nagios Core on CentOS is extremely powerful and flexible, but it requires effort to modernize with automation, better visualization, and a scalable architecture. It can still be very effective compared to newer monitoring tools, and it could benefit from a UI with tools such as Grafana, implementing distributed monitoring for scalability and fine-tuning alerting to reduce noise. These kinds of improvements would make it more efficient and easier to manage in large environments. Nagios Core on CentOS is strong technically but needs ecosystem improvement to match modern observability tools.
I believe Nagios Core on CentOS can be improved mainly by the granularity of the metrics; while most enterprise metrics are available, some complex ones are missing, and it would be beneficial to integrate more APIs for better data granularity, which newer users struggle to see. Regarding needed improvements, at this stage it is better, and I do not think any new things are required.
To improve Nagios Core on CentOS, we need to consolidate the many pages we see on the interface into a single page because we cannot check information across multiple pages efficiently.
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. Having those plugins would be very useful.