prescanic is a fully featured IP scanner. It supports SYN scanning, banner grabbing, forking, a debug mode, a verbose mode, anonymous login detection, telnet parsing, HTTP server information, RPC scanning, and more.
libextractemail is a library that takes any string, searches it for email addresses, and returns them in a list.
A tool for securing DNS communications between a client and a DNS resolver.
A polyhedral extraction tool (PET).