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FortiMonitor vs Nagios Core comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

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
37th
Ranking in IT Infrastructure Monitoring
40th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
15
Ranking in other categories
IT Alerting and Incident Management (16th), Digital Experience Monitoring (DEM) (11th)
Nagios Core
Ranking in Network Monitoring Software
12th
Ranking in IT Infrastructure Monitoring
12th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
51
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2026, in the Network Monitoring Software category, the mindshare of FortiMonitor is 0.7%, down from 0.8% compared to the previous year. The mindshare of Nagios Core is 1.5%, down from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.5%
FortiMonitor0.7%
Other97.8%
Network Monitoring Software
 

Featured Reviews

reviewer2677554 - PeerSpot reviewer
Network Engineer III at a energy/utilities company with 1,001-5,000 employees
Managing diverse networks with detailed alerts enhances device oversight
FortiManager is very helpful in managing our networks. We use it to manage 20 farms and various networks with hundreds of devices. The version we are using provides more detail than the older dashboard. We appreciate the alerting capabilities, which are integrated with SolarWinds to notify our team via SMS.
HY
Senior System Administrator at Interactive Group
Monitoring solution provides comprehensive visibility across IT infrastructure
The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.

Quotes from Members

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

Pros

"FortiMonitor has a very intuitive dashboard, which makes it particularly helpful for analyzing traffic, alerts, and other information."
"The most valuable feature of FortiMonitor is user monitoring, as we are able to see if the user is following the policy or not from their system, and 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."
"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."
"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."
"Fortinet's customer support is very good."
"Overall, I would recommend FortiMonitor to others."
"FortiMonitor offers comprehensive monitoring capabilities, allowing me to track network traffic in and out effectively."
"The most valuable feature is the performance parameters of the system."
"Dashboard provides monitor of total assets."
"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."
"Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens."
"The solution is quite efficient."
"Other products are good but from the configuration point of view Nagios is really very lightweight. The price is really good in my opinion. Another important thing is that my Nagios engine still works with Dual core 8GB ram for the last 10 years."
"It sends alerts to the right people which ensures there is no delay in the correct person or team looking into issues, and it has helped to reduce downtime in the production environment to almost zero so we now spend less time on network or server administration."
"Inspite of this limitation it is a fantastic product to use at zero cost"
 

Cons

"Sometimes, we get corruption when upgrading from firmware to the new generation, causing a lot of issues."
"Additionally, there are no AI features in FortiMonitor, which might be an area for enhancement."
"FortiMonitor needs to improve its alert system."
"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."
"FortiMonitor could improve by having compatibility with other operating systems, such as Linux."
"There are areas for improvement that FortiManager is addressing."
"Sometimes, during high CPU usage, we cannot access FortiMonitor and must refresh it."
"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."
"Nagios Core does not have a graphic display."
"Cloud monitoring is an area for improvement because there aren't too many plugins available."
"A better UI for graphing would make it better. The present graphs are not very friendly and good to see."
"They should simplify the features so it becomes easier to setup out of the box."
"The alerting mechanism in Nagios Core could be improved."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
"Nagios Core would benefit from aggregations if a particular server goes down."
"This solution is not scalable at all. If you want to add an AI, or if you wanted to monitor different types of metrics, you won't get the most out of it."
 

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."
"FortiMonitor's price is very high."
"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."
"Nagios Core is an open source solution, and there are no licensing fees."
"It's free."
"We are using the free version of Nagios Core."
"The solution is expensive."
"Nagios Core is a cheap solution."
"Nagios Core is free to use."
"It's free."
"We are using the free version."
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Top Industries

By visitors reading reviews
Construction Company
8%
Healthcare Company
8%
Manufacturing Company
8%
Financial Services Firm
8%
Manufacturing Company
10%
Comms Service Provider
9%
Financial Services Firm
8%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise6
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
 

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...
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.
What needs improvement with FortiMonitor?
There are areas for improvement that FortiManager is addressing. We have not yet upgraded to the latest software versions, being a full revision behind, but we plan to update soon since the current...
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.
What is your primary use case for Nagios Core?
I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...
 

Comparisons

 

Also Known As

Panopta
No data available
 

Overview

 

Sample Customers

SONY, GoDaddy, HCL, ING, ARMOR, billboard
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about FortiMonitor vs. Nagios Core and other solutions. Updated: June 2026.
902,894 professionals have used our research since 2012.