pfSense is a very popular free and open source firewall solution. It does not only provide classic firewall services but has plenty of features like VPN server or can offer DNS, DHCP, proxy services… and many more. pfSense is also proposed by some companies as a commercial service with support.
I published the following diary on isc.sans.edu: “Simple Blacklisting with MISP & pfSense“: Here is an example of a simple but effective blacklist system that I’m using on my pfSense firewalls. pfSense is a very modular firewall that can be expanded with many packages. About blacklists, there is a well-known