Comodo Dome Firewall [EOL] vs OPNsense comparison

Xcitium and OPNsense are both solutions in the Firewalls category. Additionally, 100% of Xcitium users are willing to recommend the solution, compared to 95% of OPNsense users who would recommend it.

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Executive Summary

We performed a comparison between Comodo Dome Firewall [EOL] and OPNsense based on real PeerSpot user reviews.

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Firewalls

April 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

Fortinet FortiGate

Featured Reviews

Abhinandan Yadav

Network Security Engineer at Arrow PC Network Pvt Ltd

Unified security and sd-wan have improved uptime and cut wan costs for multi-site branches

Users report stability issues in certain versions, which requires regular updates. Real-world attacks have also highlighted the need for urgent patching of vulnerabilities.Fortinet FortiGate, while a powerful and feature-rich web firewall, could improve in areas like firmware stability, documentation, and ease of use. The learning curve can be steep for some users. For beginners, support quality can vary, and frequent updates with occasional vulnerabilities call for careful patch management. However, once Fortinet FortiGate is configured, it remains highly reliable and efficient. Customer support needs improvement, as I find it very slow, with reports from other users reflecting that customer support is inadequate.

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Walter Shelver

Owner at CableWeb

User-Friendly, improves security, and gives me more control over my VoIP

We purchased the solution and we are partners. I haven't had a chance to go through all of the features and what this solution offers, but I think that it has an integrated VPN. I am looking forward to using another VPN. I am anxious to see it, as we are going to set that up for one of the clients. At this time, I am not able to add any comments on how this solution can be improved, because this solution does what it is asked to do. I would rate this solution an eight out of ten.

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Moutaz Sheikh Alard

ISO 27001 Lead Implementer at a consultancy with 11-50 employees

Has helped simulate enterprise security setups and strengthens network segmentation practices

For my capstone, I use OPNsense for my project and its broader benefits for enterprise and cybersecurity context. OPNsense is an open source based firewall and routing platform. It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost. This platform has a modular design, a clean web-based GUI, and frequent updates that prioritize security and usability. It competes with commercial firewalls such as Cisco ASA, FortiGate, and Palo Alto, but stands out because it's community-driven, cost-effective, and transparent. I find OPNsense's feature of acting as a central firewall and gateway most valuable, providing robust point segmentation between the internal network and DMZs in my capstone project, intrusion detection to monitor malicious traffic, VPN services for secure remote access, and logging and monitoring for compliance and auditing. This allows me to simulate a real-world enterprise environment on a smaller scale, demonstrating both security hardening and network efficiency. OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing. The flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers. The security-first design for IDS/IPS integration helps me showcase modern defense-in-depth strategies. The user-friendly management through the web GUI makes it possible to manage complex firewall rules clearly, which is critical when documenting and presenting a capstone. Scalability is also an advantage. Although my project is lab-based, OPNsense can scale into production deployments in SMBs and enterprise.

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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

"The system is very easy to scale."

"The main benefit is the grouping of our security monitoring."

"We are very well satisfied with the Fortinet technical support."

"Fortinet FortiGate is scalable; if you are familiar with it, you can work from anywhere and do whatever you want, and it is very easy to scale."

"The notable features that I have found most valuable are that it includes the antivirus, and also IPS, and even SD-WAN."

"We have knowledge of other firewall products but FortiGate is the best."

"The features that we have found most valuable are the SSL VPN and the User Portal."

"The reporting you receive out of this appliance is excellent. You will not need an external management system."

More Fortinet FortiGate pros

"This solution has given me more security, I have more control over my VoIP solution, and I can pick up separate VNs."

"This solution is user-friendly."

"The most valuable features in OPNsense are reporting and visibility."

"I find the solution to be user-friendly, with a lot of reports and easy settings."

"Its pricing is unbeatable in comparison to other firewalls."

"The most valuable feature of OPNsense is compatibility."

"We have been operating here in our lab for several months, and everything appears to be extremely stable."

"The most valuable feature is the Dual WAN in OPNSense, which offers advanced capabilities."

"The most valuable thing about this product is that it is very easy to use, the graphic user interface is very good, and it is user-friendly."

"The system in general is quite flexible."

More OPNsense pros

Cons

"The interface and product support could use improvement."

"Updating the software during issues can be quite convoluted, especially if there is an unexpected attack, such as on a Saturday."

"Some of the filtering is not robust, you can escape it with a VPN. Some of the users bypass some of the filters."

"One area of improvement I've noticed is the lack of built-in monitoring capabilities in the firewall. Currently, we rely on third-party solutions for monitoring purposes. However, I believe the firewall itself has the potential to do a better job in this aspect. Another aspect of Fortinet that concerns me is related to redundancy. We have a setup with two firewalls working in parallel, which requires a highly adaptable configuration. However, it feels unfair that clients need to purchase two licenses, especially when one of the firewalls serves as a backup. We have noticed that other manufacturers have different policies on this matter."

"Fortinet FortiGate needs to improve the protection, it did not prevent us from being attacked. Additionally, Fortinet FortiGate could provide more features for WAF devices. I should not have to purchase two solutions, it would be a benefit to combine these features into one solution."

"The user interface of the Fortinet FortiGate management console could be more intuitive and user-friendly, and the log analysis and reporting features could be enhanced to provide more flexibility and customizable insights."

"FortiGate is a complete solution, but it is very expensive compared with other solutions."

"They need to improve their technical support."

More Fortinet FortiGate cons

"I haven't seen any feature that will allow me direct authentication for a VPN solution."

"The logging could improve in OPNsense."

"There are a few weaknesses. For example, there is a lack of some features that I have in certain commercial products."

"An area for improvement in OPNsense is the hardware, which needs to be updated more frequently. DNS blocking is another good feature I want to be added to the solution. pfSense has a peer-blocking feature that I also want to see in OPNsense."

"The reporting part could be better."

"We did not like the fact that you have to configure everything with the graphic user interface. We have used other firewalls, such as FortiGate, that you can configure via code. OPNsense is not easy to integrate. When you are deploying via GitHub or another source repository, this is not possible. That's one thing we didn't like much."

"The scalability needs improvement."

"I think the most important thing is that it should be easily accessible, but currently, that doesn't seem to be the case. We need a hardware platform that's based on common standards and open computing principles, which would be like a commodity and benefit us greatly."

"pfSense has better performance and quicker updates."

More OPNsense cons

Pricing and Cost Advice

"The price of FortiGate support is too expensive."

"FortiGate Next Generation Firewall is a very cheap solution."

"Fortinet FortiGate's price can be reduced."

"There is a license to use Fortinet FortiGate."

"Fortinet FortiGate SWG is an affordable solution."

"The licensing scheme of Fortinet is better than Cisco. It is more logical."

"When comparing the price of Fortinet FortiGate SWG to other solutions it is expensive. The price could be better."

"The price of Fortinet FortiGate when compared to other solutions is high. However, my knowledge of the price is from third parties and I am not sure how accurate it is. I typically work in the technical area of my organization."

More Fortinet FortiGate pricing and cost advice

Information not available

"OPNsense is a well known open-source tool."

"It is not an expensive product. Basically, I deployed it because it was the fastest solution to satisfy our needs in open source."

"There are no licensing costs for OPNsence."

"I'm using the free version of OPNsense. I didn't check the pricing for the solution because I still need to test it before getting the approval to purchase OPNsense, and it isn't easy to get approval from the higher-ups."

"We are using the paid version."

"It is free."

"The price of OPNsense is good."

"I would rate the pricing a nine out of ten, especially considering the availability of a free community edition."

More OPNsense pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

10%

Comms Service Provider

10%

Manufacturing Company

Financial Services Firm

No data available

Comms Service Provider

17%

Computer Software Company

11%

Manufacturing Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	367
Midsize Enterprise	135
Large Enterprise	193

No data available

By reviewers
Company Size	Count
Small Business	31
Midsize Enterprise	6
Large Enterprise	8

Questions from the Community

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As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...

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Ask a question

Earn 20 points

What is the difference between PfSense and OPNsense?

Two of the most common and well recognized firewalls, PfSense and OPNsense both support site-to-site IPsec VPN and cl...

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What is your experience regarding pricing and costs for OPNsense?

Setup cost is almost zero as one can simulate the whole environment using open source version. Pricing seems fair eno...

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What needs improvement with OPNsense?

In my opinion, OPNsense could improve by incorporating either an open side of wireless management or a way that you c...

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Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 18% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 5% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 3% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 2% of the time

More Fortinet FortiGate Competitors

Cisco Secure Firewall vs Comodo Dome Firewall [EOL]

Compared 46% of the time

More Comodo Dome Firewall [EOL] Competitors

Netgate pfSense vs OPNsense

Compared 53% of the time

IPFire vs OPNsense

Compared 7% of the time

Sophos Firewall vs OPNsense

Compared 6% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Untangle NG Firewall vs OPNsense

Compared 2% of the time

More OPNsense Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

May 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

April 2026

Download Comodo Dome Firewall [EOL] product report

Buyer's Guide

OPNsense

April 2026

Download OPNsense product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

Dome Firewall

No data available

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

Maintaining day-to-day operations - and growing your business - requires network traffic to constantly flow into and out of your internal network. A lot of that traffic is trusted. But much of it isn't, and you need to be able to distinguish between the two. Comodo Dome Firewall is a unified threat management system that helps to secure all ports and protocols and delivers a host of security controls.

Xcitium

OPNsense is an adaptable open-source firewall and routing platform appreciated for its flexibility, scalability, and user-friendly interface. It is equipped with robust security features and offers excellent reporting and visibility, essential for small businesses and home setups.

OPNsense stands out for its modular design, allowing cost-effective customization. This system supports VPNs and various firewall capabilities, making it suitable for securing networks from malicious traffic. Its frequent updates and extensive documentation, combined with a supportive online community, enhance user experience. However, there is room for improvement in integration with virtual servers and Azure. Scalability and hardware updates are important for large-scale environments, and users desire more reliable VPN solutions and enhanced threat intelligence tools.

What are OPNsense's most important features?

Flexibility: Easily customizable due to its open-source nature.
Robust Security: Advanced security features for network protection.
User-Friendly Interface: Simplified management and configuration.
Frequent Updates: Regular improvements and new features.
Dense Documentation: Extensive resources and community support.

What benefits should users look for in reviews?

Cost-Effectiveness: Open-source design reduces costs.
Scalability: Ability to grow with business needs.
Customizability: Tailored solutions for different requirements.
Community Support: Access to a strong network of resources and peers.

OPNsense is implemented in industries requiring VPN and firewall functions, supporting site-to-site connections, protecting servers, and managing commercial network traffic. Companies apply it for security, UTM, SD-WAN, content filtering, intrusion detection, and prevention, utilizing its open-source nature and effectiveness as a next-generation firewall.

OPNsense

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya

Information Not Available

1. Deciso B.V. 2. iXsystems, Inc. 3. EuroBSDCon 4. Netgate 5. Claranet 6. Voleatech 7. Open Systems AG 8. Securebit AG 9. Proxmox Server Solutions GmbH 10. AVM Computersysteme Vertriebs GmbH Additional customers include: T-Systems International GmbH, Deutsche Telekom AG, Vodafone GmbH, 1&1 IONOS SE, OVHcloud, Hetzner Online GmbH, Strato AG, PlusServer GmbH, Host Europe GmbH, United Internet AG, 1&1 Versatel Deutschland GmbH, QSC AG, Bechtle AG, Cancom SE, Computacenter AG & Co. oHG, T-Systems Multimedia Solutions GmbH, Atos SE, Capgemini SE, Accenture plc, IBM Corporation, Hewlett Packard Enterprise Company, Cisco Systems, Inc.

Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls. Updated: April 2026.

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