JH2N (Java host to named conversion program) converts a hosts file to a full BIND 8 or 9 configuration. JH2N was inspired by the h2n.pl program included in the O'Reilly "DNS and BIND" book. Various options are available to enhance its operation by incuding external files. Using the simple host file syntax, very large and complex zones can be maintained.
GNU Privacy Guard DNS Keyserver Client enables sending and retrieving OpenPGP keys with GnuPG to and from DNS-based keyservers. DNS-based keyservers offer several advantages over traditional HTTP-based ones, such as distributed caching, server fail-over, and geographical optimal server selection, etc.
Network Query Tool (NQT) is a one-stop solution for getting information about a domain or IP address. Instead of manually using different Unix commands or visiting numerous Web sites to investigate a host, just load Network Query Tool and enter the hostname or IP. NQT does the rest. It supports a large number of TLDs and ccTLDs.
Host is a complete and powerful command-line based DNS query and testing tool. It has many of the same basic features as other similar tools such as nslookup and dig, but it has more extensive testing and test automation features. Host also has a much more standard (i.e. Unix-based) command-line user interface.