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

1,625 Views
1,333 Comparison Views

100% willing to recommend

Nagios Core

Read 51 Nagios Core reviews

4,590 Views
4,039 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: July 2025).

Buyer's Guide

FortiMonitor vs. Nagios Core

July 2025

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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

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's dashboard is very informative and user-friendly."

"FortiMonitor is 100% stable."

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

"The most valuable feature of FortiMonitor is user monitoring. We are able to see if the user is following the policy or not from their system. Additionally, the solution integrates well with Fortinet FortiGate and has centralized management."

"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."

"Fortinet's customer support is very good."

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

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

More FortiMonitor pros

"Alert calls occur anytime a service goes down or a matrix is difficult and that helps us to quickly restore service and transfer work."

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

"We use the product to monitor server applications."

"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 reporting structure and the feature set are valuable to me."

"Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens."

"It is fairly easy to set up, and we can monitor pretty much everything we want to."

"I like that it's very simple to install, easy to manage and deploy, and easy to use for monitoring."

More Nagios Core pros

Cons

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

"FortiMonitor's monitoring could be much better. It should be like, in Palo Alto."

"FortiMonitor needs to improve its alert system."

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

"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."

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

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

"Sometimes, we get corruption when upgrading from firmware to the new generation, causing a lot of issues."

More FortiMonitor cons

"The core version is no match for the XI version."

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

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

"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."

"It is a bit slow due to latency."

"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."

"Nagios Core does not have a graphic display."

"The initial setup process could be easier."

More Nagios Core cons

Pricing and Cost Advice

"FortiMonitor's price is very high."

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

"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."

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

"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."

"Nagios Core is a cheap solution."

"Most the plugin features are free."

"We are using the free version of Nagios Core."

"Lessening the price point would be an improvement."

"We are using the free version."

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

"The solution is expensive."

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

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

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

Comparisons

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Compared 27% of the time

Datadog vs FortiMonitor

Compared 17% of the time

Zabbix vs FortiMonitor

Compared 16% of the time

SolarWinds Network Device Monitor vs FortiMonitor

Compared 13% of the time

PRTG Network Monitor vs FortiMonitor

Compared 11% of the time

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Icinga vs Nagios Core

Compared 25% of the time

Nagios XI vs Nagios Core

Compared 16% of the time

Zabbix vs Nagios Core

Compared 12% of the time

Centreon vs Nagios Core

Compared 8% of the time

Checkmk vs Nagios Core

Compared 5% of the time

More Nagios Core Competitors

Product Reports

Buyer's Guide

Digital Experience Monitoring (DEM)

July 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

July 2025

Free Report: FortiMonitor vs. Nagios Core

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