FortiMonitor vs Nagios Core comparison

Fortinet and Nagios are both solutions in the Network Monitoring Software category. Fortinet is ranked #14 with an average rating of 8.4, while Nagios is ranked #11 with an average rating of 8.5. Fortinet holds a 0.8% mindshare in NMS, compared to Nagios’s 2.7% 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

1,621 Views
1,313 Comparison Views

100% willing to recommend

Nagios Core

Read 51 Nagios Core reviews

4,424 Views
3,893 Comparison Views

80% willing to recommend

FortiMonitor

Nagios Core

Comparison Buyer's Guide

Download the report

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: August 2025).

Buyer's Guide

FortiMonitor vs. Nagios Core

August 2025

Download the complete report

Helped 865,295 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

14th

Ranking in IT Infrastructure Monitoring

15th

Average Rating

8.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

IT Alerting and Incident Management (7th), Digital Experience Monitoring (DEM) (5th)

Nagios Core

Ranking in Network Monitoring Software

11th

Ranking in IT Infrastructure Monitoring

10th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of August 2025, in the Network Monitoring Software category, the mindshare of FortiMonitor is 0.8%, up from 0.6% compared to the previous year. The mindshare of Nagios Core is 2.7%, 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…

Read full review

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

Quotes from Members

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

Pros

"It provides the best firewall features."

"Overall, I would recommend FortiMonitor to others."

"FortiMonitor is 100% stable."

"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."

"The tool continuously improves, adapting to support new vendors and technologies. Importantly, it automates the process, triggering alerts when devices require attention, and eliminating the need for manual intervention."

"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."

"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 solution helps to see client infrastructure. It has many boxes and blinks green or red when the station goes up or down. We have different domains for the device groups that we monitor."

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."

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

"The application performance monitoring feature is valuable."

"The good thing about Nagios Core is it covers everything."

"Dashboard provides monitor of total assets."

"Key features include the GUI interface, its notification capabilities, and the real-time reporting."

"Provides timely notifications."

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

More Nagios Core pros

Cons

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

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

"I think the current features are really good for me, nothing else comes to mind right now. Maybe some small improvements could be made in the customization and configuration part of the UI to make it easier or more intuitive. Customizable UI options, like we saw in the demo, could be helpful for everyone. But in our operational environment, having clear health status and system details is crucial for us system engineers. One feature I'd really like to see is a credential management system. It would help us keep track of who's logged in and how many times, which is important due to user restrictions. Sometimes, we need to manage logins more efficiently, like logging off other users to free up credentials. So having a feature like that would be really helpful."

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

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

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

"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."

More FortiMonitor cons

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

"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."

"It is a bit slow due to latency."

"The dashboard and monitoring features could be improved."

"The mapping is a little hard."

"It's not that easy to install the product itself. Also, the UI is a bit hard for regular users to navigate through."

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

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

More Nagios Core cons

Pricing and Cost Advice

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

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

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

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

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

"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."

"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."

"FortiMonitor's price is very high."

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

"We are using the free version."

"Lessening the price point would be an improvement."

"Most the plugin features are free."

"The product is cheaply priced."

"Nagios Core is a cheap solution."

"It's free."

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

More Nagios Core pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Network Monitoring Software solutions are best for your needs.

See recommendations

865,295 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

27%

Manufacturing Company

Healthcare Company

Retailer

Computer Software Company

14%

Government

Manufacturing Company

Comms Service Provider

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

ThousandEyes vs FortiMonitor

Compared 26% 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 12% of the time

PRTG Network Monitor vs FortiMonitor

Compared 11% of the time

More FortiMonitor Competitors

Icinga vs Nagios Core

Compared 23% of the time

Nagios XI vs Nagios Core

Compared 15% 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 5% of the time

More Nagios Core Competitors

Product Reports

Buyer's Guide

Digital Experience Monitoring (DEM)

August 2025

Download FortiMonitor product report

Buyer's Guide

Nagios Core

August 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

August 2025

Free Report: FortiMonitor vs. Nagios Core

Find out what your peers are saying about FortiMonitor vs. Nagios Core and other solutions. Updated: August 2025.

DOWNLOAD NOW

865,295 professionals have used our research since 2012.

See our FortiMonitor vs. Nagios Core report.

See our list of best Network Monitoring Software vendors and best IT Infrastructure Monitoring vendors.

We monitor all Network Monitoring Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.