

Both OPNsense and Azure Firewall offer robust firewall solutions. OPNsense is favored for its cost-effectiveness and support, while Azure Firewall stands out for its advanced features despite a higher price point.
Features: OPNsense is known for its customizable and extensive feature set, including a variety of plugins. Azure Firewall is recognized for its seamless integration with other Azure services and overall reliability. Users find Azure Firewall's integration capabilities particularly advantageous in environments already utilizing Azure services.
Room for Improvement: OPNsense reviewers suggest improvements in documentation and a more user-friendly configuration process. Azure Firewall users request enhanced logging capabilities and simplified setup. Both need better documentation, but Azure Firewall users emphasize improvements in logging.
Ease of Deployment and Customer Service: OPNsense is straightforward to deploy but may require additional manual configuration. Customer service is generally well-regarded. Azure Firewall is easier to deploy within Azure environments and has responsive customer support, making it a smoother choice for users already in the Azure ecosystem.
Pricing and ROI: OPNsense is praised for its lower setup costs and favorable ROI, attracting budget-conscious users. Azure Firewall, while more expensive, is justified by its extensive capabilities and integration benefits, leading users to perceive it as worth the investment.
With Azure Firewall on the cloud, you just need to subscribe to the firewall, configure it, and it will help you protect your environment.
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
For a very little investment, I was able to increase the security of my network.
Microsoft provides excellent customer support, especially with premium support plans.
Nevertheless, the final support from Microsoft remains effective.
With Azure products, customer support is really good.
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
I mainly rely on community support since the solution is open source.
If you say you do not have one, it is finished. This is where the monopoly starts.
Based on my experience, I would rate it nine out of ten for scalability.
Azure Firewall is highly scalable, and I would give it a scalability rating of nine out of ten.
When we started deploying the solution, it was not a mature product at times.
I use Zenarmor, pinning it to one core for packet inspection, and the CPU performance seems very good.
OPNsense's scalability is excellent; I just need to resize my hardware and upgrade the server, and voilà, I am good to go.
In theory, OPNsense can handle small home networks and even large enterprise environments if deployed on sufficiently powerful hardware or virtualized on a clustered system.
The stability of Azure Firewall is excellent.
For our use case, Azure Firewall is stable enough.
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
At the latest code level, I haven't experienced any crashes.
If Azure Firewall can integrate identity features, it will help deliver additional next-generation capabilities.
Improvement in reporting and better visibility into network traffic would also be beneficial.
Azure Firewall could improve its reporting capabilities.
Enhancing its performance for significant amounts of data traffic would make it closer to a perfect solution.
It would be beneficial if they could create some videos on how to set it up themselves.
The documentation should be clearer because I faced some difficulties navigating many options.
The standard functionality for API Management is at a zero level, and then the next level is one.
Azure Firewall is quite expensive, with a high cost.
Azure Firewall is subscription-based, which is advantageous as there is no need for upfront payment.
I consider the pricing of OPNsense to be high when compared with other market products.
OPNsense is free, the licensing and setup was easy.
We have to combine multiple features and multiple products, and then we can say that this is more cost-effective and works properly to ensure the security posture of our cloud deployments.
With Azure Firewall on the cloud, you just need to subscribe to the firewall, configure it, and it will help you protect your environment.
The premium version includes all traditional firewall features, reducing the need for separate compute resources.
The most valuable features include the basic firewall functionality and the GeoIP location services.
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
| Product | Mindshare (%) |
|---|---|
| OPNsense | 7.9% |
| Azure Firewall | 2.7% |
| Other | 89.4% |

| Company Size | Count |
|---|---|
| Small Business | 12 |
| Midsize Enterprise | 12 |
| Large Enterprise | 22 |
| Company Size | Count |
|---|---|
| Small Business | 32 |
| Midsize Enterprise | 6 |
| Large Enterprise | 8 |
Azure Firewall integrates seamlessly with Azure services, providing threat intelligence-based filtering, scalability, and simplified configuration. It secures Azure-based infrastructure, protects workloads, and filters network traffic to ensure safe internet access.
Azure Firewall is central to managing security for applications, especially in hybrid cloud environments. Its features like URL filtering, SSL/TLS inspection, and centralized security controls cater to segmentation and zero-trust policies. Users appreciate its affordability, frequent updates, and flexibility for administrators with policies and high availability. However, some users see room for improved application filtering, better Azure integration, and more comprehensive documentation. Desired advanced features include intrusion prevention, anti-virus, and URL filtering. Cost concerns and limited scalability are mentioned, with suggestions for AI use, VPN functionalities, and enhancements in firewall management.
What are the most important features of Azure Firewall?Many industries leverage Azure Firewall for secure cloud operations. Technology firms use it for hybrid cloud security, focusing on segmentation and zero-trust. Financial institutions deploy it for compliance and secure internet access, while healthcare uses it for protecting patient data and ensuring secure communications between on-prem servers.
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?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.
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