Network Security with pfSense

Firewall

You can configure pfSense as a firewall to put rules and other security settings over the private network. A firewall is a network security system that uses rules to control incoming and outgoing network traffic. It acts as a barrier between a trusted and untrusted network. A firewall controls access to the resources of a network through a positive control model. This means that the only traffic allowed onto the network is defined in the firewall policy. All other traffic is denied.