What we like about OPNsense:

Firewall: OPNsense includes a powerful firewall with stateful packet inspection (SPI), packet filtering, and support for IPv4 and IPv6. It allows administrators to create and manage firewall rules to control traffic flow and enforce security policies.

Intrusion Detection and Prevention System (IDS/IPS): OPNsense integrates Suricata, an open-source IDS/IPS engine, to detect and prevent network-based attacks such as intrusions, malware, and denial-of-service (DoS) attacks. It offers real-time alerts and blocking capabilities to protect the network from threats.

Virtual Private Network (VPN): OPNsense supports various VPN technologies, including IPsec, OpenVPN, and WireGuard, to establish secure connections between remote sites, users, and devices. It enables encrypted communication over the internet and ensures confidentiality and integrity of data transmission.

Extensibility and Customization: OPNsense is highly extensible and customizable, allowing users to extend its functionality with plugins, add-ons, and custom scripts. It offers a robust plugin ecosystem with community-contributed packages for additional features and integrations.

Open Source and Community Support: OPNsense is open-source software distributed under the BSD license, providing transparency, flexibility, and freedom for users to modify and redistribute the code. It has an active community of users, developers, and contributors who provide support, documentation, and continuous improvement of the platform.