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NETSCOUT nGeniusONE vs Nagios Core comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 2024

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
8.8
Nagios Core reduces downtime and costs with quick alerts, providing full ROI and eliminating expensive monitoring tools.
Sentiment score
6.5
NETSCOUT nGeniusONE boosts efficiency by reducing troubleshooting time, enhancing visibility, and improving user satisfaction despite licensing challenges.
 

Customer Service

Sentiment score
5.1
Nagios Core relies on community support, praised for stability and resources, but lacks official help compared to Nagios XI.
Sentiment score
6.2
NETSCOUT nGeniusONE support is valued for expertise but faces mixed feedback on response times and engineer availability.
The distributor's support is rated an eight out of ten, indicating room for improvement in SLA handling.
They need to work on their response time and overall competence.
I am actually happy with technical support from NETSCOUT.
 

Scalability Issues

Sentiment score
6.7
Nagios Core shows scalability for large networks but may need customizations and integrations for distributed environments.
Sentiment score
7.9
NETSCOUT nGeniusONE efficiently scales for growth with virtual technology, though hardware costs and configuration may affect expansion.
The solution is scalable.
It is not similar to software solutions Datadog or Dynatrace where they can easily add agents without problems.
The solution is highly scalable and accommodates the growth needs effectively.
 

Stability Issues

Sentiment score
8.2
Nagios Core is highly stable and reliable with minimal footprint, supporting extensive monitoring without network burden.
Sentiment score
8.0
NETSCOUT nGeniusONE is reliable with rare downtime; minor issues occur, but support is responsive and stability is high.
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
I rate the stability of NETSCOUT nGeniusONE as ten out of ten since we have not experienced any escalations or downtime issues from the end user's side.
Datadog is more stable than NETSCOUT nGeniusONE, being a SaaS-based solution compared to on-prem solutions like NETSCOUT.
Customers are more sensitive about NETSCOUT nGeniusONE's upgrades because it has hardware.
 

Room For Improvement

Nagios Core needs a more intuitive interface, better scalability, and features like enhanced reporting and integration with modern tools.
NETSCOUT nGeniusONE needs a user-friendly interface, improved integration, modular pricing, and enhanced cloud capabilities to address user challenges.
It would be beneficial to see more AI capabilities included in nGeniusONE to further streamline processes.
Many big companies Samsung and Hyundai try to build their own monitoring solutions using open-source tools and their own engineers, though it has not been successful.
Customers want to have service assurance, including NPM and APM, from one vendor.
 

Setup Cost

Nagios Core is a free, cost-effective open-source tool, but requires Linux expertise and incurs hosting and maintenance costs.
Enterprise users find NETSCOUT nGeniusONE reliable and valuable, but expensive, with complex pricing and crucial licensing considerations for upgrades.
The cost depends on the size of the customer, as sizing controls the pricing.
 

Valuable Features

Nagios Core provides flexible, low-resource monitoring with customization, automation, efficient alerts, and integration support for reliable IT performance visibility.
NETSCOUT nGeniusONE excels in real-time monitoring, traffic analysis, and data insights, favored by large finance and manufacturing companies.
It has a very handy dashboard, providing live alerts and visibility for everything.
The capability of real-time traffic intelligence is also very useful because it allows for the comparison between real-time and historical packet levels.
NETSCOUT is focusing on network monitoring, specifically packet analysis, which sets them apart.
 

Categories and Ranking

Nagios Core
Ranking in Network Monitoring Software
10th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
IT Infrastructure Monitoring (9th)
NETSCOUT nGeniusONE
Ranking in Network Monitoring Software
31st
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
50
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Network Monitoring Software category, the mindshare of Nagios Core is 2.8%, down from 3.2% compared to the previous year. The mindshare of NETSCOUT nGeniusONE is 1.5%, down from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

Nishith-Vyas - PeerSpot reviewer
Valuable reporting and alert system with room for PDF export improvements
The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.
Ruslan Melnyk - PeerSpot reviewer
Useful for network performance monitoring
My manager can explain the use cases attached to the product. I am a unit leader in my company, and I don't sell the product directly to our partners or customers. In my company, I manage certain processes and a team while building, developing, and providing them with a direction for the market. NETSCOUT nGeniusONE is a good solution for network performance monitoring since it is not cloud-based. My company sells NETSCOUT nGeniusONE in eight to ten countries. I think the solution is not good for capacity planning, but it is better to help find problems in applications because not every infrastructure is good at managing working applications. I think it is a solution meant for applications. The tool is useful for solving problems attached to applications. The tool's real-time network monitoring capability was used when the product was more reactive. In our company, if we use real-time monitoring, then we need to deal with raw traffic. In our company, if we don't see any problem in the real-time systems, we have the possibility to rely on the tool since it acts like a time machine for us, which can allow us to get back to the areas of problem and solve them. I recommend the product to those who plan to use it. For many users, it can be a good monitoring system that can be scaled up in the future. I think it is a good product to start with when working systems in an environment. NETSCOUT nGeniusONE is another tool used to manage raw traffic, and I find it to integrate well into our customers' network. I am not using it actively on the system. I use the tool for network packet brokers. I rate the tool a ten out of ten.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Government
9%
Manufacturing Company
9%
Financial Services Firm
9%
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
10%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Nagios Core?
What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.
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.
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.
Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
I would say if it’s an ISP that will build a scrubbing center, Netscout/Arbor is a good solution. In all other solutions, Imperva is a great choice.
What do you like most about NETSCOUT nGeniusONE?
Stability-wise, I rate the solution a ten out of ten.
What is your experience regarding pricing and costs for NETSCOUT nGeniusONE?
The pricing is a bit high yet not overly expensive. The cost depends on the size of the customer, as sizing controls the pricing.
 

Also Known As

No data available
NETSCOUT nGenius, nGeniusONE
 

Overview

 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Cerner Corporation
Find out what your peers are saying about NETSCOUT nGeniusONE vs. Nagios Core and other solutions. Updated: July 2025.
861,524 professionals have used our research since 2012.