FortiMonitor vs Nagios Core comparison

Fortinet and Nagios are both solutions in the Network Monitoring Software category. Fortinet is ranked #21 with an average rating of 8.3, while Nagios is ranked #10 with an average rating of 8.5. Fortinet holds a 0.8% mindshare in NMS, compared to Nagios’s 2.8% mindshare. Additionally, 100% of Fortinet users are willing to recommend the solution, compared to 80% of Nagios users who would recommend it.

FortiMonitor

Read 15 FortiMonitor reviews

1,333 Views
544 Comparison Views

100% willing to recommend

Nagios Core

Read 51 Nagios Core reviews

4,039 Views
1,830 Comparison Views

80% willing to recommend

FortiMonitor

Nagios Core

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 9, 2024

Nagios Core and FortiMonitor are competitors in network monitoring. FortiMonitor seems to have the advantage due to its advanced feature set.

Features: Nagios Core offers open-source versatility, extensive plugin support, and alerting mechanisms. FortiMonitor provides cloud-based monitoring, automated remediation, and flexible scaling options.

Room for Improvement: Nagios Core could improve user interface, automated management, and scaling capabilities. FortiMonitor may focus on enhancing customization, integration options, and reducing dependence on a cloud-only model.

Ease of Deployment and Customer Service: Nagios Core requires significant setup time and technical knowledge. FortiMonitor supports a straightforward deployment with comprehensive technical support.

Pricing and ROI: Nagios Core's low initial costs are offset by infrastructure and maintenance expenses. FortiMonitor uses a subscription model offering higher ROI through reduced downtime.

To learn more, read our detailed FortiMonitor vs. Nagios Core Report (Updated: May 2025).

Buyer's Guide

FortiMonitor vs. Nagios Core

May 2025

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Helped 860,592 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:

Categories and Ranking

FortiMonitor

Ranking in Network Monitoring Software

21st

Ranking in IT Infrastructure Monitoring

26th

Average Rating

8.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

IT Alerting and Incident Management (9th), Digital Experience Monitoring (DEM) (7th)

Nagios Core

Ranking in Network Monitoring Software

10th

Ranking in IT Infrastructure Monitoring

9th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of July 2025, in the Network Monitoring Software category, the mindshare of FortiMonitor is 0.8%, up from 0.7% compared to the previous year. The mindshare of Nagios Core is 2.8%, down from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software

Featured Reviews

JaimeVasquez

Commercial Manager at IT-Experience

Monitoring capabilities keep operations running smoothly and alerts enhance proactive system management

We use FortiMonitor to monitor the infrastructure of our customers. We check on what is happening with their operations, monitor bandwidth, ensure configurations are appropriate for the customer, and identify if anything is going wrong The most valuable features of FortiMonitor are its redundancy…

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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.

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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

"FortiMonitor offers comprehensive monitoring capabilities, allowing me to track network traffic in and out effectively."

"In FortiMonitor, we're linked up with our Netgear, CactusServer, and NOC. It's really valuable because everything's migrating to one dashboard for us system engineers. We can keep an eye on traffic, blocked sites, and the health of our hardware. That last part, about knowing if something's going to fail soon, is super important. It gives us time to sort things out before any big problems happen. As a system engineer, I need to keep tabs on everything – temperature, monitoring systems, and network operations. This data is really handy because it helps me ensure our site runs smoothly, whether it's turning systems on or off. Just last night, there was a system failure, but thanks to real-time monitoring, I quickly identified the problem and got the necessary replacement parts."

"Overall, I would recommend FortiMonitor to others."

"FortiMonitor is really easy to use for monitoring the logs on FortiGate...It is a stable product."

"The most valuable feature of FortiMonitor is the overall ability to monitor the health of the environment."

"FortiMonitor is 100% stable."

"It provides the best firewall features."

"The most valuable feature of this solution is what the devices are used for. We have big backups for our Cradlepoint solutions, but FortiMonitor is a great routing device and we love working with them."

More FortiMonitor pros

"The solution is quite efficient."

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

"The most valuable feature of Nagios Core is it allows us to develop and add as many plugins as we want."

"It has made the life of the network operations staff more proactive in managing the resources of the infrastructure. It prevents disasters long before they can take place."

"The most valuable feature of Nagios Core is the ability to check the availability of the server for network connectivity. Additionally, the interface is good."

"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."

"I like the way the solution sends alerts and how it keeps on escalating them."

"The application performance monitoring feature is valuable."

More Nagios Core pros

Cons

"The solution's initial setup process is time-consuming."

"Sometimes, during high CPU usage, we cannot access FortiMonitor and must refresh it."

"There is room for improvement in the FortiMonitor report. It is not ideal for showcasing to tech customers or managers, especially when trying to display high CPU usage from logins within a specific range of months or the most recent month."

"FortiMonitor could improve by having compatibility with other operating systems, such as Linux."

"FortiMonitor could be improved by making it more convenient for smaller workloads, such as when configuring a few branches."

"We use FortiToken, and it's a pain to use because you have to send things through your phone and then confirm by email. Only after this can you log in. It's dual-factor authentication. I wish that I could just log in or bring up a dashboard where I could log in from."

"There are no AI features in FortiMonitor, which might be an area for enhancement."

". Enhancements in the dashboard, such as clearer alerting, maintenance window management, software version tracking, and better visualization, would be beneficial."

More FortiMonitor cons

"The scalability needs improvement, it's not scalable at this time."

"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."

"The mapping is a little hard."

"The alerting mechanism in Nagios Core could be improved."

"The dashboard should be improved."

"The dashboard and monitoring features could be improved."

"t was a little hard to get our setup represented in the configuration."

"Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."

More Nagios Core cons

Pricing and Cost Advice

"There are additional costs needed for certain functionality, such as scalability."

"Compared to other solutions, FortiMonitor is a very expensive solution."

"FortiMonitor's price is very high."

"The price of FortiMonitor is approximately $200 annually for 225 users. The price is competitive."

"We have a large customer base for Fortinet, and the additional buying power got us really great discounts."

"The tool's pricing model in Vietnam is a bit high. I rate the product price as an eight out of ten."

"On a scale from one to ten, I rate the pricing a nine since it is a good solution that is available at a cheap price."

"In terms of licensing, while it may not be the most expensive option on the market, it's relatively cost-effective. You can obtain licenses at a lower cost, with the calculation being straightforward. For example, if you onboard around 5,000 devices, you'll need approximately 5,000 licenses, as each device typically counts as one license."

"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."

"It's free."

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

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

"The solution is expensive."

"Most the plugin features are free."

"Nagios Core is an open source solution, and there are no licensing fees."

"The product is cheaply priced."

More Nagios Core pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

27%

Manufacturing Company

Healthcare Company

Retailer

Computer Software Company

15%

Government

10%

Manufacturing Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What is the best network monitoring software for large enterprises?

I have a clear bias because I work for Panopta. We aren't a fit for everyone, but I can confirm that Panopta is a lot less work to stand up and maintain. It's also a lot easier to use and onboard n...

See all answers

What do you like most about FortiMonitor?

In FortiMonitor, we're linked up with our Netgear, CactusServer, and NOC. It's really valuable because everything's migrating to one dashboard for us system engineers. We can keep an eye on traffic...

See all answers

What is your experience regarding pricing and costs for FortiMonitor?

FortiMonitor does save time but not significantly on costs, as there are still expenses related to procurement, installation, and licensing.

See all answers

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

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Compared 25% of the time

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Compared 16% of the time

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Compared 12% of the time

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Compared 8% of the time

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Compared 5% of the time

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Product Reports

Buyer's Guide

Digital Experience Monitoring (DEM)

May 2025

Download FortiMonitor product report

Buyer's Guide

Nagios Core

June 2025

Download Nagios Core product report

Also Known As

Panopta

No data available

Overview

FortiMonitor is a comprehensive, SaaS-based digital experience monitoring (DEM) platform that helps organizations modernize their performance-monitoring tools. It provides visibility into endpoint application performance and digital experience—no matter where the user resides or where the application is hosted.

Fortinet

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

Nagios

Sample Customers

SONY, GoDaddy, HCL, ING, ARMOR, billboard

Airbnb, Cisco, PayPal, FanDuel

Buyer's Guide

FortiMonitor vs. Nagios Core

May 2025

Free Report: FortiMonitor vs. Nagios Core

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