PluSHS allows a user to resolve the names of a single IP address or entire network of addresses to maintain a “map” of the names that comprise a certain network.
You can download it from the following link: https://packetstormsecurity.com/files/download/26195/plushs-1.0.tar.gz
Source: https://packetstormsecurity.com/files/26195/plushs-1.0.tar.gz.html

