dnsjava - DNS implementation in Java

dnsjava is an implementation of DNS in Java. It supports all defined record types (including the DNSSEC types), and unknown types. It can be used for queries, zone transfers, and dynamic updates. A cache is used to reduce the number of DNS queries sent. A simple tool for doing DNS lookups, a 'dig' clone and a dynamic update client are included, as well as a simple authoritative-only server.