I use several different firewalls within my home network, from different vendors and for different requirements. They all have pros and cons and part of the reason for using different firewalls within my environment. With this in mind, OPNsense just released their latest major release 24.7, Thriving Tiger. OPNsense is a FreeBSD-based firewall/router appliance originally forked from the pfSense project. It has really come into its own in recent years. I have been using it since the release was made available. It is a great release and looks great as well. Also, I am not one of those that fights over pfSense versus OPNsense because I use both, but this new release definitely deserves a call out.
If you want to understand more about firewalls and how to initially configure or stand up OPNsense or pfSense, then consider getting the Cybersecurity Architect's Handbook. In the book you will not only learn about firewalls, but much much more.
