OPNsense

Originating from the Netherlands, OPNsense is a software that provides firewall and routing services. Developed by Deciso, it is built on open-source and FreeBSD-based technology. It is a derivative of pfSense and m0n0wall, launched in 2015. The software offers advanced firewall features, aligning with the concept of Next-Generation Firewalls, and operates under a Simplified BSD/FreeBSD License.