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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Buyer's Guide

Firewalls

May 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

Joseph Koomson

IP Network Security Specialist at MTN Ghana

Process-Level CPU Visibility: Introduce detailed CPU-usage metrics per subsystem (e.g., IPS engine, logging) so administrators can quickly identify and address performance spikes.

Analytics with FortiAnalyzer. Being able to pull in logs not just from our FortiGates but from all our other firewalls and then get them in one view has been a game changer. Whether I’m building an executive dashboard or doing a deep dive forensics session, I get everything I need without navigating consoles.Straightforward Application Control. FortiGate spots and blocks unwanted apps (eq. like BitTorrent or streaming services) with accuracy. Segmentation with VDOMs. We’ve carved our data center into four logical ‘mini-firewalls’ enterprise, core, billing, and WAF—all on one box. Each has its own rules and logs, and any traffic between them still gets inspected. It’s like having multiple appliances without the extra hardware. Always-Up-to-Date Threat Feeds. Daily signature updates and AI-driven threat sensing mean we’re blocking the latest vulnerabilities almost as soon as they’re announced.

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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

"We’ve gone from only selling Fortinet FortiGate as an accessory to creating an entire department in our business dedicated to selling Fortinet products in the span of three years."

"The solution's application control is very powerful."

"One of the nice things about FortiGate is that it can be deployed on the cloud or on-premises. You can actually do both. That's the biggest reason why I stick with this solution as opposed to something like Cisco Meraki. Another nice thing is that I can log directly into a FortiGate or get to it through their FortiCloud access products. They're pretty reliable and consistent. One of the reasons why I started using the product was their single pane of management. I can deploy their line of firewalls in conjunction with their switching and access points, and I can manage the entire network from one interface. I don't have to log into one interface for the firewall, another one for the access points, and another one for the switches. These firewalls have access point controller functionality built right into the system, so I don't even have to purchase additional devices to manage them."

"Fortinet FortiGate has saved me both money and time."

"The solution is stable; it doesn't have any issues with bugs and glitches, it doesn't crash or freeze, and it's very reliable."

"I highly recommend the Fortinet product because of its implementation, as it is a solid product with an easy configuration and good support."

"Previously, we were using a different solution, and as compared to that solution, it is very easy to handle."

"The most valuable feature is the deep inspection for traffic, which is capable of identifying zero-day attacks."

More Fortinet FortiGate pros

"This solution is user-friendly."

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

"I moved to OPNsense because it's more secure and more reliable."

"Overall, I would rate OPNsense as nine out of ten."

"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 IDS and IPS features are valuable. From the usability perspective, there is a lot of good documentation. As IT professionals, we found it very easy to configure the firewall. It was easy to configure and use."

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

"The initial implementation process is simple."

"One of the most valuable features is the network checking. Additionally, the firewall and web filtering functionalities are highly useful."

"We can open a new VPN connection easily. It's much easier than with Fortinet in our experience."

More OPNsense pros

Cons

"They should improve the interface to make it more user-friendly."

"The solution lacks multi-language support."

"The solution is quite expensive and I'd like to see the cost reduced."

"The management consoles can be improved."

"The support is not good because I generally search for solutions online. When I open a case, they usually identify it as a bug they are working on."

"I would like to see improvements in the product's application rules."

"With the reports, you can see it, and you can get good feelings so upper management can go, "Oh, wow. That looks pretty." However, it's very basic."

"Technical support for this solution can be improved."

More Fortinet FortiGate cons

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

"When using the solution at the beginning was difficult. There was a steep learning curve."

"I would like to see better SD-WAN performance."

"The support for OPNsense is good because we have documents available on the internet. The support could improve a little."

"The interface isn't so friendly user. But we have some technicians here who are quite confident with this tool. OPNSense could maybe add sets of rules so it's simpler to manage different groups with particular needs."

"I confirm that I am currently still working with OPNsense and still using their product. However, because of the hardware that I am using, sometimes it ends up freezing quite often, especially the interfaces, most of the busy interfaces."

"The reporting part could be better."

"In our experience, OPNsense showed me some problems when using it in different environments. The problem is integration with a virtual server."

"The only thing that I would like to see improved is the Insight or the NetFlow analysis part. It would be good to have the possibility to dig down on the Insight platform. Right now, we can easily do only a few analyses. If this page becomes more powerful, it surely will be a well-adopted platform."

More OPNsense cons

Pricing and Cost Advice

"At the time we bought them, I was satisfied with their pricing; I don't know how the new pricing will be."

"It is a cost-effective solution that meets the user's needs."

"Its pricing is good. The advantages of Fortinet FortiGate over its competitors include good pricing and meeting our requirements at a lower cost."

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

"The product pricing is reasonable."

"It's a year based license."

"We have the full version of Fortinet FortiGate and we are on a three-year contract with a commitment of five years."

"It's very affordable."

More Fortinet FortiGate pricing and cost advice

Information not available

"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."

"I've used the free version. My computer with two network cards at home allows me to try as many different software options as I want. I did pay for the license, but it was for the Zenarmor license, which is the packet inspection tool. They use AI for packet inspection, which integrates with OPNsense and pfSense."

"We are using the paid version."

"OPNsense is an open-source solution and it is free to use."

"The price of OPNsense is good."

"There are no licensing costs for OPNsence."

"I would rate the pricing three out of ten."

"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

Comms Service Provider

10%

Computer Software Company

Manufacturing Company

Financial Services Firm

No data available

Comms Service Provider

17%

Computer Software Company

10%

Manufacturing Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	369
Midsize Enterprise	139
Large Enterprise	195

No data available

By reviewers
Company Size	Count
Small Business	32
Midsize Enterprise	6
Large Enterprise	8

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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?

When I talk about VPN, I am not completely satisfied with the VPN functions of OPNsense. What I have received so far ...

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Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 16% 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 45% of the time

More Comodo Dome Firewall [EOL] Competitors

Netgate pfSense vs OPNsense

Compared 52% of the time

IPFire vs OPNsense

Compared 6% of the time

Sophos Firewall vs OPNsense

Compared 5% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Cisco Secure Firewall vs OPNsense

Compared 3% of the time

More OPNsense Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

June 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

May 2026

Download Comodo Dome Firewall [EOL] product report

Buyer's Guide

OPNsense

June 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: May 2026.

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