Package “zmap” has 3 man pages.

ZBlacklist is a network tool for limiting and deduplicating a list of IP addresses using a blacklist or whitelist.
ZMap is a network tool for scanning the entire Internet (or large samples). ZMap is capable of scanning the entire Internet in around 45 minutes on a gigabit...
ZTee is an output buffer and splitter for use with ZMap output data. ZTee should be used whenever ZMap is piped into an application scanner, placed between ZMap...