Fierce Domain Scan by FIERCE @ Kali Linux

1.   This post gives a stepped screen shot version of a relatively unknown but powerful tool known as Fierce. It is a perl script written by rsnake. Fierce tries multiple techniques to find all the IP addresses and hostnames used by a target. Fierce is meant specifically to locate likely targets both inside and outside a corporate network.A very detailed explanation with ease is given at http://ha.ckers.org/fierce/

2.  To use Fierce, navigate to Information Gathering | DNS Analysis | Fierce.
Fierce will load into a terminal window as shown in the following screen shot.