Security Onion vs syslog-ng by One Identity comparison

Why PeerSpot?

Security Onion Solutions, LLC and One Identity are both solutions in the Log Management category. Security Onion Solutions, LLC is ranked #22 with an average rating of 8.0, while One Identity is ranked #16 with an average rating of 10.0. Security Onion Solutions, LLC holds a 1.6% mindshare in Log Management, compared to One Identity’s 1.4% mindshare. Additionally, 85% of Security Onion Solutions, LLC users are willing to recommend the solution, compared to 100% of One Identity users who would recommend it.

Security Onion

Read 7 Security Onion reviews

8,264 Views
6,281 Comparison Views

85% willing to recommend

syslog-ng by One Identity

Read 7 syslog-ng by One Identity reviews

4,389 Views
4,389 Comparison Views

100% willing to recommend

Security Onion

syslog-ng by One Identity

Comparison Buyer's Guide

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Executive SummaryUpdated on Jul 20, 2026

Syslog-ng by One Identity and Security Onion are competitive in the security and data management sector. Security Onion holds the upper hand for its advanced security monitoring capabilities.

Features: Syslog-ng offers log collection, data enrichment, and integration with multiple solutions for real-time monitoring. It supports TLS for secure connections and has a straightforward configuration approach. Security Onion provides network security monitoring, intrusion detection, and integrates with tools like Suricata and Zeek. Its dashboard and threat hunting capabilities make it suitable for threat detection and response.

Room for Improvement: Syslog-ng could improve by offering a more comprehensive SIEM solution and simplifying complex setups for larger deployments. Enhancing its configuration user interface could also benefit users. Security Onion can improve by streamlining its deployment process, offering more intuitive configurations, and expanding its customer support services for quicker issue resolutions.

Ease of Deployment and Customer Service: Syslog-ng is known for streamlined deployment and robust customer service, making it easier for quick setups and management. Security Onion's deployment is more complex but provides solid customer service, though not as renowned as Syslog-ng. The complexity reflects its extensive security features but demands more time and resources for deployment.

Pricing and ROI: Syslog-ng offers a competitive pricing model with a strong return on investment, particularly for organizations focused on log management. Security Onion, while free, may incur costs in terms of time and resources due to complexity. If fully utilized, its extensive capabilities offer a high return, making it a cost-effective option for seeking comprehensive security coverage.

To learn more, read our detailed Security Onion vs. syslog-ng by One Identity Report (Updated: September 2026).

Buyer's Guide

Security Onion vs. syslog-ng by One Identity

September 2026

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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

Security Onion

Ranking in Log Management

22nd

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

syslog-ng by One Identity

Ranking in Log Management

16th

Average Rating

9.0

Reviews Sentiment

3.2

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2026, in the Log Management category, the mindshare of Security Onion is 1.6%, down from 4.5% compared to the previous year. The mindshare of syslog-ng by One Identity is 1.4%, down from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Log Management Mindshare Distribution
Product	Mindshare (%)
syslog-ng by One Identity	1.4%
Security Onion	1.6%
Other	97.0%

Log Management

Featured Reviews

Matthew Sexton

Help Desk

Hands-on monitoring has built my threat detection skills and now supports my graduate research

The biggest challenges I have experienced with Security Onion are the learning curve and resource requirements, as it is not necessarily something you can install and immediately understand without networking and Linux knowledge. I actually encountered an HTTP 500 error with the management interface recently, which required troubleshooting and expanding my storage, showing me how important storage planning and system maintenance are when running Security Onion. What I would improve about Security Onion is probably the documentation around troubleshooting common issues, particularly storage management, and making the interface more approachable for new users. Having documentation of what works best would help, especially since you can have nodes or have it all built-in one as a standalone. If you use nodes, you have to have several different Security Onion instances downloaded, then have a manager and connect all of them together.

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Oliver Castellucchio

IT Infrastructure & Cloud Security Manager at Thux

Has ensured compliance by centralizing log data and supporting secure connections

We currently do not use that feature. We currently have just an open-source release, not a premium release. My boss has indicated that he wants to buy a premium syslog-ng version next month. I think we can use other features of this tool in the future. In syslog-ng, I think a GUI would be beneficial. I am unsure if the premium module has a GUI to administer it.

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Quotes from Members

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

Pros

"Security Onion has positively impacted my organization by enabling students to analyze logs, understand network traffic, comprehend intrusion detection, and utilize threat hunting and incident response skills in a practical environment, which are best practices we have implemented with the students."

"Security Onion brings these tools together in one platform, making it easier to investigate security events and understand what's happening across the network."

"Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization."

"What I appreciate most about Security Onion is that it combines multiple security monitoring tools into one platform."

"The most valuable feature of Security Onion for security monitoring is its ability to find infected ports."

"We use Security Onion for internal vulnerability assessment."

"Security Onion is the most mature solution in the market."

"Syslog-ng provides easy access to all my logs. It helps me show managers and other clients precisely where an incident occurred. I also like it because you can integrate syslog-ng with multiple solutions to allow real-time monitoring."

"The ability to extract and store the logs is the most valuable feature of syslog-ng."

"We chose syslog-ng because it is easy to install, easy to maintain, easy to update, and due to the fact that all data arrive in raw format, we can manipulate it as we want."

"Syslog-ng has a separate config file in addition to the core configuration."

"Syslog-ng has built-in features that we can use to create alerts for a SIEM solution. It isn't a true SIEM solution, but it's sufficient for the time being."

"What I appreciate most about syslog-ng is its configuration; its C-style config is much easier to understand, read, and write than other popular solutions such as syslog or rsyslog."

"For us, the most valuable feature is the use of compound search for searching logs at a specific time, by a specific user, or specific behavior."

Cons

"One way Security Onion could improve is by making the initial setup and configuration easier, especially for new users."

"The product is not easy to learn."

"One of the improvements for Security Onion could be to address the issue of many logs and false positive alerts by reducing the number of false positives, as storage management is very hard sometimes due to a lack of storage space for logs, and they could implement methods to expand storage."

"Security Onion can be made easier to set up initially, as it is somewhat difficult at the start, but once configured, it becomes a great tool to use."

"The initial setup of the solution is a little bit difficult."

"The biggest challenges I have experienced with Security Onion are the learning curve and resource requirements, as it is not necessarily something you can install and immediately understand without networking and Linux knowledge."

"Security Onion's user interface could be improved."

"There is room for improvement in terms of observability."

"The filtering has room for improvement."

"It's hard to find people who know how to use syslog-ng. I often find problems with configurations, and solutions aren't integrated correctly with syslog-ng. For example, there might be data with extra decimals, or the collector agents are incorrectly named. It isn't a problem with the solution; it's a lack of professionals."

"In syslog-ng, I think a GUI would be beneficial. I am unsure if the premium module has a GUI to administer it."

"There is always the potential for additional integration and protocol extensions."

Pricing and Cost Advice

"Security Onion is a free solution."

"Security Onion is an open-source solution."

"It is an open-source solution."

"Syslog-ng is open-source."

"Syslog-ng is a free open-source solution."

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Top Industries

By visitors reading reviews

Comms Service Provider

12%

University

11%

Government

10%

Construction Company

Financial Services Firm

10%

Comms Service Provider

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	3
Midsize Enterprise	1
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	3
Midsize Enterprise	2
Large Enterprise	3

Questions from the Community

What is your experience regarding pricing and costs for Security Onion?

Security Onion does not require any cost, as it is open-source and free.

See all answers

What needs improvement with Security Onion?

Security Onion can be made easier to set up initially, as it is somewhat difficult at the start, but once configured, it becomes a great tool to use. I assigned a rating of eight out of ten because...

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What advice do you have for others considering Security Onion?

Security Onion is a completely open-source and free platform, making it a cost-effective solution that works smoothly and effectively for our organization. Security Onion integrates well with our e...

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What needs improvement with syslog-ng?

See all answers

What is your primary use case for syslog-ng?

In Italy, we have to be compliant with the Garante for privacy. We have to log every login, logout, or login failure made by a system administrator. We store all syslog data of the infrastructure. ...

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What advice do you have for others considering syslog-ng?

When it comes to parsing, I can parse both structured and unstructured data, though our data are only structured. Currently, we collect all data we receive as raw data. Each file is stored for each...

See all answers

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Product Reports

Buyer's Guide

Log Management

October 2026

Download Security Onion product report

Buyer's Guide

syslog-ng by One Identity

September 2026

Download syslog-ng by One Identity product report

Overview

Security Onion is an open-source Linux distribution for intrusion detection, network security monitoring, and log management. It offers comprehensive solutions for enterprises seeking to enhance their cybersecurity infrastructure.

Security Onion provides a full suite of tools to detect and respond to cybersecurity threats efficiently. As a robust and versatile distribution, it includes capabilities for real-time analysis, network visibility, and threat detection, making it indispensable for security operations centers. Users value this tool for its integration of open-source software with advanced analytics, affording professionals a detailed overview of network traffic and potential intrusions.

What are Security Onion’s most important features?

Intrusion Detection: Utilizes Suricata or Zeek for effective threat monitoring.
Network Security Monitoring: Offers powerful visualization tools for network analysis.
Log Management: Centralizes log collection and analysis.
Comprehensive Dashboards: Provides integrated dashboards for threat visibility.

What benefits or ROI should you look for in reviews?

Cost Efficiency: Reduced cybersecurity costs due to its open-source nature.
Improved Threat Detection: Enhanced ability to identify and respond to threats quickly.
Integration Capability: Seamless integration with existing security infrastructures.
Scalability: Support for scaling network security operations as needed.

Security Onion finds extensive application in industries such as finance, healthcare, and government sectors, where robust network monitoring is critical. Its ability to integrate with existing security tools makes it a preferred choice for organizations looking to strengthen their cybersecurity posture.

Security Onion Solutions, LLC

Syslog-ng is recognized for its proficiency in log extraction, storage, and secure TLS connections. Its efficient configuration and real-time monitoring integration make it a preferred option for large-scale log processing, ensuring compliance with regulatory standards.

Syslog-ng offers powerful log management capabilities, accommodating complex search needs while maintaining simplicity with user-friendly documentation and real-time monitoring features. The C-style configuration enhances readability, allowing users to easily comprehend and implement changes. Designed for high performance, Syslog-ng scales effectively to handle extensive logging demands. Despite its strengths, areas for improvement include integration with protocols and filtering methods. Users advocate for better Kafka integration and a graphical configuration interface to simplify setup. While historical dissatisfaction led to custom patches, subsequent updates have addressed these concerns. Currently, users seek an advanced version to access premium functionalities.

What are the most important features of syslog-ng?

Log Extraction and Storage: Streamlined processes for efficient data handling.
TLS-Supported Secure Connections: Ensures secure data transmission over networks.
Real-Time Monitoring Integration: Enhances proactive decision-making capabilities.
"C-Style" Configuration: Improves readability and simplifies setup for users.
High-Performance Log Processing: Supports large-scale environments with ease.

What benefits should users look for when evaluating syslog-ng?

Easy Configuration: Reduces time and complexity for initial setup and adjustments.
Compliance Assurance: Facilitates adherence to data regulations in Brazil and Italy.
Intuitive Examples and Documentation: Simplifies user training and onboarding.
Smooth Multi-Server Setups: Enables efficient deployment across multiple servers.

Organizations frequently use syslog-ng for log aggregation, filtering, and regulatory compliance, serving as a crucial component in enterprise security audits and data regulation adherence in Brazil and Italy. By allowing logs to be stored in raw format, syslog-ng provides versatility in data manipulation and user activity tracking, making it user-friendly for installation, maintenance, and updates. Logs can be transmitted over TLS or plain text to central servers, supporting varied transmission needs.

One Identity

Sample Customers

Information Not Available

Tecnocom, University of Victoria, University of Exeter, Datapath

Buyer's Guide

Security Onion vs. syslog-ng by One Identity

September 2026

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