Fierce - A DNS Reconnaissance Tool for Locating Non-Contiguous IP Space

First, credit where credit is due, fierce was originally written by RSnake along with others at http://ha.ckers.org/ . This is simply a conversion to Python 3 to simplify and modernize the codebase. The original description was very apt, so I'll include it here: Fierce is a semi-lightweight scann...

DNS reconnaissance tool: Fierce

Fierce is a DNS reconnaissance tool for locating non-contiguous IP space Fierce is a semi-lightweight scanner that helps locate non-contiguous IP space and hostnames against specified domains. It’s really meant as a pre-cursor to nmap, unicornscan, nessus, nikto, etc, since all of those require...