Whether home or business, if I could only choose one package to install it would be pfBlockerNG. First, DNSBL is fantastic (think built-in Pi-hole). Yes, the default WAN rules will already block everything if you don't have any forwards. But as motific and others have alluded to, even then, if you deny both directions (LAN and WAN) via the IP component your internal clients will get blocked when trying to communicate with known bad addresses. The alerts/reports will show this activity as well. This is a pic of the alerts on the new version, but the older version had similar functionality. On this particular firewall, if the LAN interface shows up in the list of "denies" I need to investigate the cause of the alert.
[image: pfblockerng-alerts.png]
[image: pfblockerng-alerts.png_thumb]