Пакет djbdns-walldns: Информация

walldns is a reverse DNS wall. It accepts iterative DNS queries for
in-addr.arpa domains from hosts around the Internet, and supplies
generic responses that avoid revealing local host information.
For example, walldns provides a PTR record for 4.3.2.1.in-addr.arpa
showing 4.3.2.1.in-addr.arpa as the name of IP address 1.2.3.4, and a
matching A record showing 1.2.3.4 as the IP address
of 4.3.2.1.in-addr.arpa.