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IBM Security QRadar vs Nagios Log Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 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

IBM Security QRadar
Ranking in Log Management
7th
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
217
Ranking in other categories
Security Information and Event Management (SIEM) (3rd), User Entity Behavior Analytics (UEBA) (2nd), Endpoint Detection and Response (EDR) (16th), Security Orchestration Automation and Response (SOAR) (4th), Managed Detection and Response (MDR) (6th), Extended Detection and Response (XDR) (11th)
Nagios Log Server
Ranking in Log Management
48th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Log Management category, the mindshare of IBM Security QRadar is 4.0%, up from 3.9% compared to the previous year. The mindshare of Nagios Log Server is 0.9%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
IBM Security QRadar4.0%
Nagios Log Server0.9%
Other95.1%
Log Management
 

Featured Reviews

HarshBhardiya - PeerSpot reviewer
SOC Engineer at a outsourcing company with 10,001+ employees
Have managed daily asset and alert monitoring effectively but have encountered limitations with manual processes and interface usability
It's still very manual and doesn't work on its own. It's still in an early stage and not on par where we can consider it a really successful detection system. The accuracy is not there. The UI could be better when compared to Sentinels where we can use flags and tagging. It could be much more user-friendly. IBM Security QRadar has all features and is fully competitive with other SIEM tools, but when it comes to user-friendliness, a new user takes time to get used to it. More intuitive, user-friendly interfaces and more helpful documentation would be beneficial. The query searching and data fetching could be faster. In large to very large organizations with around 5,000 or 6,000 assets or beyond, even with proper configurations and RAM and hardware backing up, the query is fairly slow.
Syarul Idzuddin Adzmi - PeerSpot reviewer
Operation Director at Digital Pulse Sdn Bhd
A scalable and affordable tool for monitoring data centers
Five engineers are needed for the maintenance of the product. I would definitely recommend the solution to those planning to use it. To increase the rating for the product, Nagios should offer remote support and offer more customization in reporting while making it easy for the customers to use it. Overall, I rate the solution an eight out of ten.

Quotes from Members

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

Pros

"There are more than 120 extensions in QRadar, which are easy to install and configure. These can improve your analysis of events."
"Integrations are quite a useful and key feature of this solution. It has integration with the CVSS score, which is a central point for all the data and scores about the threats. There is an IBM Bluemix dashboard that is integrated with the CVSS score."
"This solution provides me with various alarms, and I have found security issues with some of my other products."
"It pretty much does the monitoring of our network, so just having the tool secures the environment itself."
"It's a state-of-the-art product for security information and event management (SIEM)."
"Providing real-time visibility for threat detection and prioritization - QRadar SIEM provides contextual and actionable surveillance across the entire IT infrastructure."
"The stability is good."
"What's most valuable in IBM QRadar User Behavior Analytics is its higher availability than other tools."
"The product is scalable."
"One of the most valuable features is the dashboard because the UI was effective and easy to use. The alert systems are good as well. We had no failovers and had high availability. We can search the queries fast as well in Nagios Log Server."
"The initial setup of Nagios Log Server was easy and straightforward."
"A great feature of the solution involves its internal portal."
 

Cons

"We did encounter stability issues as IBM’s patches are not stable at all."
"When it comes to what could be better, it is always what others are trying to do and what is the roadmap. It can have more integration. It should have more flexible RESTful APIs for integration with applications. These are the things that are always in demand for any of the SIEM solutions, not only for QRadar. Integration is ever-evolving. Nowadays, different versions of mobile handsets are there and data is getting scattered. Users are using their personal handsets to keep the data of the organization. So, it should have a more flexible integration, irrespective of the flavor of the firmware and iOS or Android version. It should have an API that can seamlessly get integrated. It should also provide more flexible control and a more advanced or analytical view to see what exactly is happening across the globe or network. From wherever a user is connecting and accessing the enterprise data, it should give real-time visibility and predictive visibility about what exactly is happening. These things are already there, but there should be more advanced control in terms of managing the security."
"Certain updates—especially when using Azure—don't apply directly. Our engineering team must invest additional effort to implement these updates. However, the tool's cloud-based version poses no issues. However, upgrading the product can sometimes be challenging for on-premises instances."
"Before we didn't have any security issues but recently a few of the user emails were hacked. We had to actually recreate their emails for them."
"There are many types of AI, and this AI is very limited in SQL and features. There may be potential for improvement."
"The interface is very old. IBM should remake it into a more modern interface."
"IBM QRadar User Behavior Analytics is good, but I think the functionality should be much more integrated. You should have easy access to the artifacts if you are doing a particular investigation. It's good, but other team solutions like LogRhythm are actually merging the functionality. So, I think that is something IBM can work on."
"Each module requires a separate license and a separate cost."
"As we are talking about a product which is open to the public, the pricing makes it challenging for us to profit off of its marketing."
"The configurations during initial setup could be improved. If they could be agentless, as in the case of the Ansible product, it would be better. I would like to be able to analyze the network bandwidth."
"The support could be better."
"The customization and dashboards have shortcomings and need to be improved to make the tool look more presentable."
 

Pricing and Cost Advice

"It's too expensive."
"The license is not subscription-based."
"As for licensing costs, I haven't seen the exact figures, but it is considered somewhat costly. On a scale from one to ten, where one is very expensive and ten is very cheap, I would rate it a six—it’s costly but worth the money."
"On a scale of one to ten, I rate the price a one, where one is an extremely expensive product, and ten is a cheap product."
"QRadar UBA's price is a little more than street price and could be reduced."
"IBM has subscriptions plans that run for one year."
"This price is a little high, so it's an expensive product."
"The solution is priced fairly, there is a license for the solution, and we pay annually."
"We found the pricing to be quite affordable."
"For a single instance, the price is around $4,000."
"On a scale of one to ten, where one is expensive, and ten is cheap, I rate the pricing an eight or nine."
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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Jun 28, 2015
Qradar vs. ArcSight
Continuing with the SIEM posts we have done at Infosecnirvana, this post is a Head to head comparison of the two Industry leading SIEM products in the market – HP ArcSight and IBM QRadar Both the products have consistently been in the Gartner Leaders Quadrant. Both HP and IBM took over niche SIEM…
 

Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
8%
Government
6%
Government
13%
Manufacturing Company
9%
Computer Software Company
8%
University
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business91
Midsize Enterprise39
Large Enterprise105
No data available
 

Questions from the Community

What are the biggest differences between Securonix UEBA, Exabeam, and IBM QRadar?
It mostly depends on your use-cases and environment. Exabeam and Securonix have a stronger UEBA feature set, friendlier GUI and are not licensed based on capacity (amount of logs and information in...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is asking to miss details that are critical, and ending up a statistic. Also, rememb...
What is your experience regarding pricing and costs for IBM Security QRadar?
Pricing and the license of EPS were managed by the governance team. I was not responsible for managing those. I was supposed to put up the requirement of the license needed to integrate that amount...
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Also Known As

IBM QRadar, QRadar SIEM, QRadar UBA, QRadar on Cloud, IBM QRadar Advisor with Watson
No data available
 

Overview

 

Sample Customers

Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
IBM, impulse, wipro, comteco
Find out what your peers are saying about IBM Security QRadar vs. Nagios Log Server and other solutions. Updated: March 2026.
884,873 professionals have used our research since 2012.