PfSense

PfSense

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pfSense is an Open Source firewall distribution, used to build firewall appliances.

The distribution is based on FreeBSD and pf, the packet filtering code.

I've worked extensively with pf (on OpenBSD) in a previous job, creating both routing firewalls and bridging firewalls. pf has been my favorite ever since, I prefer it over iptables (commonly found on Linux).

pfSense offers easy configuration using a Web GUI, but can also be managed from the commandline. Advanced features include:

  • Firewalling on Layer 2 (bridging) and Layer 3 (routing)
  • CARP and pfsync for High-Availability setups with multiple redundant firewalls
  • Load Balancing
  • VPN