Nagios Core vs Redgate Monitor comparison

Nagios and Redgate are both solutions in the IT Infrastructure Monitoring category. Nagios is ranked #10 with an average rating of 8.7, while Redgate is ranked #72. Nagios holds a 2.2% mindshare in IM, compared to Redgate’s 0.4% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 100% of Redgate users who would recommend it.

Nagios Core

Read 51 Nagios Core reviews

5,494 Views
4,066 Comparison Views

80% willing to recommend

Redgate Monitor

Read 2 Redgate Monitor reviews

491 Views
471 Comparison Views

100% willing to recommend

Nagios Core

Redgate Monitor

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Executive SummaryUpdated on Mar 29, 2026

Nagios Core and Redgate Monitor are competing in the monitoring solutions sector. Nagios Core seems to have the upper hand in terms of flexibility and plugin support, while Redgate Monitor is superior in advanced database performance insights.

Features: Nagios Core provides a robust plugin architecture, a customizable alert system, and versatile infrastructure monitoring. Redgate Monitor offers advanced SQL Server metrics, detailed data analysis, and historical reporting capabilities.

Ease of Deployment and Customer Service: Nagios Core is open-source, allowing flexible on-premises deployment, and relies on community-based support, which might not be immediate. Redgate Monitor provides a streamlined installation process and dedicated commercial support, making it more accessible for teams without deep technical resources.

Pricing and ROI: Nagios Core’s open-source nature leads to lower initial costs, though customization and maintenance can add to the total cost. In contrast, Redgate Monitor involves a higher upfront investment due to licensing but potentially offers greater ROI through optimized database performance.

To learn more, read our detailed IT Infrastructure Monitoring Report (Updated: March 2026).

Buyer's Guide

IT Infrastructure Monitoring

March 2026

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Review summaries and opinions

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

Categories and Ranking

Nagios Core

Ranking in IT Infrastructure Monitoring

10th

Average Rating

8.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Network Monitoring Software (10th)

Redgate Monitor

Ranking in IT Infrastructure Monitoring

72nd

Average Rating

8.6

Reviews Sentiment

7.6

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of March 2026, in the IT Infrastructure Monitoring category, the mindshare of Nagios Core is 2.2%, down from 3.7% compared to the previous year. The mindshare of Redgate Monitor is 0.4%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

IT Infrastructure Monitoring Mindshare Distribution
Product	Mindshare (%)
Nagios Core	2.2%
Redgate Monitor	0.4%
Other	97.4%

IT Infrastructure Monitoring

Featured Reviews

Husham Yaqoob

Senior System Administrator at Interactive Group

Monitoring solution provides comprehensive visibility across IT infrastructure

The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.

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Micah Richards

Senior Software Engineer at Unisys

Centralized monitoring has reduced outages and enables faster diagnosis across all database servers

The best features Redgate Monitor offers include detailed resource monitoring, instant alerts, and easy customization. A user can quickly see how your server is performing and which queries are taking the longest. The instant alerts and customizable options help since it is a multiple-platform database observability for the entire estate. I use this to optimize performance, ensure security, and mitigate potential risks with fast, deep-dive analysis and intelligent alerting. I love Redgate Monitor because it helps manage an entire database estate from a single pane of glass. Redgate Monitor has positively impacted my organization by creating database observability to proactively mitigate potential risks with instant problem diagnosis and customizable alerting. It accelerates daily database maintenance by automating time-consuming manual tasks, such as identifying long-running queries or tracking blocked processes, which frees up time to proactively improve the performance and security of servers. I have seen time savings from twenty percent to forty-five percent. It also helps to minimize downtime.

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Quotes from Members

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

Pros

"Inspite of this limitation it is a fantastic product to use at zero cost"

"We are using Nagios Core on a VM and it's working very well, even though the specs of the VM are very low because it doesn't require much storage."

"This is probably the greatest advantage of Nagios - it can be customized to a degree to suit your monitoring needs."

"Nagios allows IT staff and end-users to see the status of critical services on the network and can alert and notify selected users if critical services fail, reducing the mean time to recover."

"Nagios Core is stable."

"Nagios Core is very configurable. Whatever you want, you can do it."

"The notifications are definitely one of the most valuable features of Nagios Core. We know what to look for and what to expect when things are down."

"Nagios Core is a great solution for monitoring pretty much any size of deployment but you do need to know your way around a Linux system to set it up and run it."

More Nagios Core pros

"Redgate Monitor has impacted our organization positively by helping us simplify day-to-day tasks and realize a feeling of security."

"Redgate Monitor has positively impacted my organization by creating database observability to proactively mitigate potential risks with instant problem diagnosis and customizable alerting."

Cons

"We're using the free version, which limits us in terms of the things that we can do."

"Making it a little easier to configure and set up from the start would help. There are multiple layers that you have to wade through to be able to set it up, to do it the right way, and to get it to do what you want it to do."

"Would benefit from aggregations if a particular server goes down."

"The dashboard and monitoring features could be improved."

"I believe Nagios Core will need to provide an option for big data platforms in the future."

"Nagios Core can improve the graphical interface, it would make things a little easier."

"The dashboard should be improved."

"It would be nice if the company offered a sales or contract manager that was dedicated to our company so that we would have some sort of link to Nagios, and if we had issues or questions, we'd be able to contact them directly."

More Nagios Core cons

"Regarding pricing, setup cost, and licensing, I must say I don't favor the subscription model, and the price is somewhat higher."

"It is a bit expensive for MSPs to use for their day-to-day monitoring."

Pricing and Cost Advice

"The enterprise version has technical support. The version we are using is free."

"I would rate the solution's pricing an eight out of ten."

"The solution is expensive."

"The Nagios Core (PNP4Nagios + Core) is free and can be setup by Netadmin within a few hours. The only additional cost is the cloud server."

"It's free."

"We are using the open-source, unpaid version."

"Nagios Core is free to use."

"It's free."

More Nagios Core pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Manufacturing Company

10%

Comms Service Provider

10%

Computer Software Company

Government

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	11
Large Enterprise	23

No data available

Questions from the Community

What is your experience regarding pricing and costs for Nagios Core?

Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.

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What needs improvement with Nagios Core?

The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.

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What is your primary use case for Nagios Core?

I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...

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What is your experience regarding pricing and costs for Redgate Monitor?

The experience with pricing and licensing is that the licensing cost per license is affordable. The cost could be a little bit lower, especially for small and medium enterprises to use this tool.

See all answers

What needs improvement with Redgate Monitor?

One of the areas that Redgate Monitor needs to improve includes providing a dedicated section of code for missing indexes. I do not think the custom metric alerting is as flexible as SQL Sentry. It...

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What is your primary use case for Redgate Monitor?

With SQL Server instances at multiple physical locations and in the cloud, my main use case for Redgate Monitor is to know immediately when there are performance issues or outages. Redgate Monitor ...

See all answers

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Compared 15% of the time

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Product Reports

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Nagios Core

March 2026

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Buyer's Guide

IT Infrastructure Monitoring

March 2026

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Overview

This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.

Nagios

Redgate Monitor provides database administrators with real-time SQL Server insights, ensuring optimal performance and streamlined operations.

Designed for database professionals, Redgate Monitor offers comprehensive diagnostics and detailed analysis, reducing administrative overhead and improving SQL Server performance. Its intuitive tools facilitate rapid issue identification and resolution, leading to enhanced system reliability.

What are the key features of Redgate Monitor?

Real-Time Monitoring: Constantly tracks SQL Server activity for instant anomaly detection.
Alerting System: Sends customized alerts to address potential issues promptly.
Performance Analytics: Detailed analytics provide a deep dive into performance metrics.
Query Performance Analysis: Offers insights into query behavior for performance optimization.
Customizable Dashboards: Tailor dashboards to focus on critical performance indicators.

What benefits should users consider in reviews?

Improved Efficiency: Streamlines database management, freeing up resources.
Cost Savings: Reduces downtime and enhances resource allocation.
Reliability: Enhances database stability and minimizes disruption risks.
Scalability: Supports expanding infrastructures with ease.
User Satisfaction: Offers features that align with user preferences.

In industries such as finance and healthcare, where data integrity and uptime are crucial, Redgate Monitor implementations lead to significant productivity and compliance benefits, ensuring databases are efficiently managed while maintaining strict regulatory requirements.

Redgate

Sample Customers

Airbnb, Cisco, PayPal, FanDuel

1. Microsoft 2. Amazon 3. Google 4. Facebook 5. Apple 6. IBM 7. Oracle 8. SAP 9. Cisco 10. Intel 11. Adobe 12. Salesforce 13. Netflix 14. Twitter 15. LinkedIn 16. Uber 17. Airbnb 18. Spotify 19. Dropbox 20. Pinterest 21. Snapchat 22. Tesla 23. HP 24. Dell 25. Sony 26. Samsung 27. General Electric 28. Siemens 29. Volkswagen 30. BMW 31. Toyota 32. Coca-Cola

Buyer's Guide

IT Infrastructure Monitoring

March 2026

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