Understanding what firewalls do (and don't do) takes just a few minutes. Learn what a firewall does to keep intruders out in < 5 minutes.

We list the best ... A firewall provides an essential first defense against unauthorized intrusion, and can also to help lock down malware before it can get started on infecting your IT network.

As a lightweight distro, OPNsense has fairly modest hardware requirements. So long as your router, mini-PC, or SBC is powered ...