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FortiMonitor vs Nagios Core comparison

Why PeerSpot?
 

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
34th
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 (17th), Digital Experience Monitoring (DEM) (11th)
Nagios Core
Ranking in Network Monitoring Software
19th
Ranking in IT Infrastructure Monitoring
16th
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 September 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 1.3%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.3%
FortiMonitor0.7%
Other98.0%
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 is really easy to use for monitoring the logs on FortiGate...It is a stable product."
"The product's initial setup phase is easy."
"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."
"FortiMonitor offers comprehensive monitoring capabilities, allowing me to track network traffic in and out effectively."
"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 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."
"Overall, I would recommend FortiMonitor to others."
"Its an awesome product to use."
"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."
"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."
"I like that it's very simple to install, easy to manage and deploy, and easy to use for monitoring."
"The reporting structure and the feature set are valuable to me."
"The application performance monitoring feature is valuable, and we primarily use it for user experience monitoring and determining which layer the problem happened to resolve it."
"Key features include the GUI interface, its notification capabilities, and the real-time reporting."
 

Cons

"FortiMonitor could be improved by making it more convenient for smaller workloads, such as when configuring a few branches."
"The tool's price in Vietnam is high, making it an area of concern where improvements can be made."
"For our type of country, it is always expensive, but it has competitive pricing."
"FortiMonitor's monitoring could be much better. It should be like, in Palo Alto."
"The solution's initial setup process is time-consuming."
"Sometimes, during high CPU usage, we cannot access FortiMonitor and must refresh it."
"There are areas for improvement that FortiManager is addressing."
"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."
"Nagios Core is not easy to use, so I don't recommend it for everyone."
"Nagios' great customizability is also one of its greatest drawback."
"I would like to see a much better Nagios Manager GUI that can support all type of configuration items, and advance search options."
"The alerting mechanism in Nagios Core could be improved."
"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."
"It would be nice if it was hosted in cloud. Also, they need to improve the graphs."
"When compared to earlier versions, it looks like 4.x has lost the statusmap.cgi module."
"The UI is a little outdated and graphics could be displayed in a better way."
 

Pricing and Cost Advice

"The price of FortiMonitor is approximately $200 annually for 225 users. The price is competitive."
"There are additional costs needed for certain functionality, such as scalability."
"Compared to other solutions, FortiMonitor is a very expensive solution."
"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."
"The tool's pricing model in Vietnam is a bit high. I rate the product price as an eight out of ten."
"We have a large customer base for Fortinet, and the additional buying power got us really great discounts."
"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."
"I would rate the solution's pricing an eight out of ten."
"Lessening the price point would be an improvement."
"The Nagios Core (PNP4Nagios + Core) is free and can be setup by Netadmin within a few hours. The only additional cost is the cloud server."
"We are using the free version."
"We are using the open-source, unpaid version."
"The solution is expensive."
"Nagios Core is a cheap solution."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise5
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: September 2026.
913,924 professionals have used our research since 2012.