BIND is the industry standard DNS solution used in the vast majority of Linux/Unix based name resolution services. It has three different “branches”, ISC BIND 4, 8 and 9, the most advanced development taking place in the ISC BIND 9 branch.

Installing PNS automatically installs an ISC BIND 9 version. BIND shipped with PNS is a full implementation of the most up-to-date version of the 9 branch, so theoretically it is possible to configure it for any DNS server role. It is hosted on a firewall, however, such liberal use of BIND is not recommended. Instead, it should rather be used as a limited-purpose DNS server. The following two examples are such possible configurations.