NETSCOUT nGeniusONE vs Nagios Core comparison

Nagios and NETSCOUT are both solutions in the Network Monitoring Software category. Nagios is ranked #12 with an average rating of 8.3, while NETSCOUT is ranked #15 with an average rating of 8.5. Nagios holds a 2.5% mindshare in NMS, compared to NETSCOUT’s 1.5% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 93% of NETSCOUT users who would recommend it.

Nagios Core

Read 51 Nagios Core reviews

3,994 Views
3,475 Comparison Views

80% willing to recommend

NETSCOUT nGeniusONE

Read 50 NETSCOUT nGeniusONE reviews

3,252 Views
2,276 Comparison Views

93% willing to recommend

Nagios Core

NETSCOUT nGeniusONE

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 10, 2024

NETSCOUT nGeniusONE and Nagios Core compete in the network monitoring and analysis space. NETSCOUT nGeniusONE seems to have the upper hand with advanced traffic analysis features.

Features: NETSCOUT nGeniusONE provides robust packet inspection, NetFlow traffic analysis, and real-time communication monitoring. Nagios Core offers strong monitoring capabilities, flexibility with custom plugins, and is open-source.

Room for Improvement: NETSCOUT nGeniusONE could benefit from a more user-friendly interface, reduced reliance on physical appliances, and better integration. Nagios Core needs a simpler installation and configuration process, enhanced reporting functionality, and a more intuitive GUI.

Ease of Deployment and Customer Service: NETSCOUT nGeniusONE offers on-premises and hybrid deployments but may require ongoing support from engineers. Nagios Core's open-source nature provides flexibility yet involves a steeper learning curve without professional support.

Pricing and ROI: NETSCOUT nGeniusONE requires a significant investment and careful planning for ROI. Nagios Core is free, aside from potential implementation and support costs, offering a cost-effective solution for knowledgeable users.

To learn more, read our detailed NETSCOUT nGeniusONE vs. Nagios Core Report (Updated: September 2025).

Buyer's Guide

NETSCOUT nGeniusONE vs. Nagios Core

September 2025

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Helped 869,760 peers since 2012

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.

No quotes available

For more quotes and insights, download the Nagios Core report

No quotes available

For more quotes and insights, download the NETSCOUT nGeniusONE report

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.

No quotes available

For more quotes and insights, download the Nagios Core report

The distributor's support is rated an eight out of ten, indicating room for improvement in SLA handling.

reviewer2598618

System Integrator at a construction company with 11-50 employees

They need to work on their response time and overall competence.

Mohammed Hassan

Regional Director at iSecureMind

I am actually happy with technical support from NETSCOUT.

EdwardShim

General Manager at MOCOMSYS

For more quotes and insights, download the NETSCOUT nGeniusONE report

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.

Husham Yaqoob

Senior System Administrator at Interactive Group

For more quotes and insights, download the Nagios Core report

It is not similar to software solutions Datadog or Dynatrace where they can easily add agents without problems.

EdwardShim

General Manager at MOCOMSYS

The solution is highly scalable and accommodates the growth needs effectively.

reviewer2598618

System Integrator at a construction company with 11-50 employees

For more quotes and insights, download the NETSCOUT nGeniusONE report

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.

Husham Yaqoob

Senior System Administrator at Interactive Group

For more quotes and insights, download the Nagios Core report

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.

reviewer2598618

System Integrator at a construction company with 11-50 employees

Datadog is more stable than NETSCOUT nGeniusONE, being a SaaS-based solution compared to on-prem solutions like NETSCOUT.

Mohammed Hassan

Regional Director at iSecureMind

Customers are more sensitive about NETSCOUT nGeniusONE's upgrades because it has hardware.

EdwardShim

General Manager at MOCOMSYS

For more quotes and insights, download the NETSCOUT nGeniusONE report

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.

No quotes available

For more quotes and insights, download the Nagios Core report

It would be beneficial to see more AI capabilities included in nGeniusONE to further streamline processes.

reviewer2598618

System Integrator at a construction company with 11-50 employees

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.

EdwardShim

General Manager at MOCOMSYS

Customers want to have service assurance, including NPM and APM, from one vendor.

Mohammed Hassan

Regional Director at iSecureMind

For more quotes and insights, download the NETSCOUT nGeniusONE report

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.

No quotes available

For more quotes and insights, download the Nagios Core report

The cost depends on the size of the customer, as sizing controls the pricing.

Mohammed Hassan

Regional Director at iSecureMind

For more quotes and insights, download the NETSCOUT nGeniusONE report

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.

Husham Yaqoob

Senior System Administrator at Interactive Group

For more quotes and insights, download the Nagios Core report

The capability of real-time traffic intelligence is also very useful because it allows for the comparison between real-time and historical packet levels.

Mohammed Hassan

Regional Director at iSecureMind

NETSCOUT is focusing on network monitoring, specifically packet analysis, which sets them apart.

EdwardShim

General Manager at MOCOMSYS

For more quotes and insights, download the NETSCOUT nGeniusONE report

Categories and Ranking

Nagios Core

Ranking in Network Monitoring Software

12th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

IT Infrastructure Monitoring (11th)

NETSCOUT nGeniusONE

Ranking in Network Monitoring Software

15th

Average Rating

8.2

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2025, in the Network Monitoring Software category, the mindshare of Nagios Core is 2.5%, down from 3.2% compared to the previous year. The mindshare of NETSCOUT nGeniusONE is 1.5%, down from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Market Share Distribution
Product	Market Share (%)
Nagios Core	2.5%
NETSCOUT nGeniusONE	1.5%
Other	96.0%

Network Monitoring Software

Featured Reviews

Nishith-Vyas

Tech Lead at STL Digital Limited

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.

Read full review

Mohammed Hassan

Regional Director at iSecureMind

Helps us by providing root cause analysis when it comes to latency and performance issues

I would recommend NETSCOUT nGeniusONE to others yet not for small SMBs due to the pricing. It is important to have the necessary NETSCOUT experience for smooth integration. The automated issue detection sometimes has a few false positives but is overall cost-effective for our customers. I'd rate the solution eight out of ten.

Read full review

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Government

Comms Service Provider

Manufacturing Company

Financial Services Firm

13%

Computer Software Company

13%

Manufacturing Company

10%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	11
Large Enterprise	22

By reviewers
Company Size	Count
Small Business	14
Midsize Enterprise	3
Large Enterprise	37

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.

See all answers

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.

See all answers

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.

See all answers

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.

See all answers

What do you like most about NETSCOUT nGeniusONE?

Stability-wise, I rate the solution a ten out of ten.

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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.

See all answers

Comparisons

Icinga vs Nagios Core

Compared 21% of the time

Nagios XI vs Nagios Core

Compared 14% of the time

Zabbix vs Nagios Core

Compared 12% of the time

Centreon vs Nagios Core

Compared 7% of the time

Checkmk vs Nagios Core

Compared 6% of the time

More Nagios Core Competitors

Dynatrace vs NETSCOUT nGeniusONE

Compared 10% of the time

ThousandEyes vs NETSCOUT nGeniusONE

Compared 9% of the time

Gigamon Deep Observability Pipeline vs NETSCOUT nGeniusONE

Compared 9% of the time

SolarWinds NPM vs NETSCOUT nGeniusONE

Compared 8% of the time

Pico Corvil Analytics vs NETSCOUT nGeniusONE

Compared 4% of the time

More NETSCOUT nGeniusONE Competitors

Product Reports

Buyer's Guide

Nagios Core

September 2025

Download Nagios Core product report

Buyer's Guide

NETSCOUT nGeniusONE

September 2025

Download NETSCOUT nGeniusONE product report

Also Known As

No data available

NETSCOUT nGenius, nGeniusONE

Overview

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

Nagios

The nGenius Real-Time Monitor software provides you with tools to monitor and display information about your network both historically and in real time. The nGenius Real-Time Monitor software allows you to understand your current network usage and to plan for future needs. It also allows you to proactively troubleshoot problem areas in your network.

NETSCOUT

Sample Customers

Airbnb, Cisco, PayPal, FanDuel

Cerner Corporation

Buyer's Guide

NETSCOUT nGeniusONE vs. Nagios Core

September 2025

Free Report: NETSCOUT nGeniusONE vs. Nagios Core

Find out what your peers are saying about NETSCOUT nGeniusONE vs. Nagios Core and other solutions. Updated: September 2025.

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