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Nagios XI vs NetMon comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 1, 2026

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

Nagios XI
Ranking in Network Monitoring Software
16th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (9th), IT Infrastructure Monitoring (17th), Cloud Monitoring Software (20th)
NetMon
Ranking in Network Monitoring Software
53rd
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
12
Ranking in other categories
Identity Threat Detection and Response (ITDR) (13th)
 

Mindshare comparison

As of May 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.5%, down from 3.3% compared to the previous year. The mindshare of NetMon is 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios XI2.5%
NetMon0.6%
Other96.9%
Network Monitoring Software
 

Featured Reviews

Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
SR
Pan India IT Infrastructure Management / End-user Services at Tata Group
Has supported real-time event detection and reporting accuracy while database integration has required extra effort
Sometimes it may be difficult to incorporate new additional databases in NetMon, and we faced some challenges at that time. However, currently, it is not giving many challenges.It is difficult to integrate NetMon with other databases. We can customize NetMon's monitoring views, but it is done by the team who handles it, as it is outsourced.

Quotes from Members

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

Pros

"It is a very stable solution and the best solution for monitoring any IT infrastructure for all companies."
"Nagios allows us to configure any device so that we can send pager alerts when people don't have access to emails. It also allows us to schedule downtime and maintenance."
"The most valuable feature of Nagios XI is customization. We can customize based on our requirements. We can do modifications and implement a lot of scripts. Additionally, it is easy to use."
"The solution's most valuable feature is its simplicity."
"The solution is pretty stable."
"I would recommend this solution because it's so powerful with no limitation, especially when using the XI version."
"The ROI is very good."
"BPI: It allows defining peripherals to map business criticality for efficient monitoring, as required."
"The analytics feature is the most valuable feature."
"It has a very strong artificial intelligence engine."
"The initial setup is straightforward because we can deploy an open server."
"We were sold on the product based on the fairly narrow use cases that the sales reps gave us, and what we're seeing during our usage is that we can get there, and we're very excited about the potential."
"Compared to many other products in the market, I think LogRhythm has the highest cost to performance ratio in terms of its value."
"Visibility is a valuable feature, the ability to see even if the traffic is not going into the firewall"
"LogRhythm NetMon's most impressive feature is that it's a bundled package, so you're not just relying on monthly data; you get a six-month view for more comprehensive indicators of compromise. This dual approach is precious. We implement LogRhythm NetMon in our cybersecurity strategy mainly for compliance and correlation of network, user, and decision activities, particularly for network firewalls and access control."
"NetMon's best feature is traffic analysis."
 

Cons

"Open-source software is usually not user-friendly."
"Reporting items needs more improvement and need to be more flexible based on customer needs."
"The product uses the backend as Perl and could be modified to a more lightweight solution like what's being offered by other vendors."
"I would like a much easier GUI so that I can delete events and logs, which will free up a lot of space."
"We are implementing our hybrid cloud strategy, and it will most likely not be suitable for monitoring our public cloud assets."
"We often need to develop custom plugins to get Nagios to work the way we want it to work because the features we need are not always available in Nagios."
"Its simple deployment but complexity comes once you have to import more plugins."
"The product could be optimized to improve the administrative user experience via the Nagios Core Configuration (NCC) GUI module."
"The main concern is that LogRhythm has not improved NetMon but instead introduced a separate product, which many customers, including us, would prefer to be integrated into a single platform for easier management."
"There is an issue with tunneling in relation to how the connectivity is established between the end devices and where NetMon is installed. On the console, I often observe that there's a difference of a few seconds or maybe a minute, and this lag time should not be there."
"Some of the automated tasks we can perform on QRadar cannot be performed on LogRhythm because the solution has limitations."
"Could use a topology diagram which would help get an exact visual."
"The training for this product is not very good and needs to be improved."
"Their technical support isn't so great."
"Previously, it was typically every Monday that I was coming in - it would die over the weekend - and I would spend a day cleaning up databases."
"I would like to see better integration with multiple products. Integration is not something that is readily available for most of the products."
 

Pricing and Cost Advice

"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"It is good to contact experts for advice about what is the best solution for your specific infrastructure and enterprise."
"The pricing is high with separate licensing for the product and support."
"The licensing fees for this solution are approximately $3,000 USD per year."
"This solution is very expensive, at approximately $5,000 USD when I purchased it, which is why I haven't upgraded my version in several years."
"We are using the free version of this solution."
"For the cost of the commercial product and support, and taking into account the open source characteristics of it, I believe it is difficult to a better value."
"Nagios XI is an expensive solution."
"NetMon's licensing costs about $85k per year, with some extra costs for support."
"LogRhythm's licensing part is something that depends on the license you want since they offer it on a perpetual and subscription basis."
"Pricing is okay. There were some competitors that were extremely expensive and there were some which were really inexpensive but LogRhythm stayed in the middle of them."
"I don't have visibility into the pricing of LogRhythm NetMon as it's handled through our commercial partnerships."
"The price of this solution is too high, so it should be made more practical and more valuable for the customer."
"The product is expensive for smaller companies."
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Financial Services Firm
10%
Computer Software Company
8%
Comms Service Provider
7%
Manufacturing Company
7%
Transportation Company
14%
Financial Services Firm
12%
Comms Service Provider
11%
Construction Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise2
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What is your primary use case for Nagios XI?
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services runnin...
What is your experience regarding pricing and costs for LogRhythm NetMon?
I don't have visibility into the pricing of LogRhythm NetMon as it's handled through our commercial partnerships.
What needs improvement with LogRhythm NetMon?
Sometimes it may be difficult to incorporate new additional databases in NetMon, and we faced some challenges at that time. However, currently, it is not giving many challenges.It is difficult to i...
What is your primary use case for LogRhythm NetMon?
We have outsourced our SIEM solutions at the moment, and we are using it.We have been using LogRhythm in our organization as a SaaS offering. We have outsourced it as part of the actual scope where...
 

Comparisons

 

Also Known As

No data available
LogRhythm Network Monitor
 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Sera-Brynn
Find out what your peers are saying about Nagios XI vs. NetMon and other solutions. Updated: April 2026.
894,738 professionals have used our research since 2012.