pfSense's DNS Resolver
Since DNS Resolver is the default resolver in the current version of pfSense, we will begin by looking at the options available for it. The first tab is labeled General Settings, and the first section on the page is General DNS Resolver Options. The first option is Enable, which enables unbound, and is checked by default. The next option is Listen Port, which allows you to set the port used for responding to DNS queries. The default port is port 53 (DNS traditionally uses port 53 and the User Datagram Protocol (UDP), although DNS also uses TCP for responses larger than a datagram, including DNSSEC and some ...
