This tool provides a number of different enumeration options, including: A, NS, MX, and SOA record enumeration for a certain domain Top Level Domain expansion for a given domain (i.e., taking example and expanding that into example.com, example.net, example.org, etc. domains with relevant A records) Zone Transfer against all NS records of a given domain Reverse Lookup for a given IP Address or IP Address Range SRV Record Enumeration At first glance, some of you may see this as a relatively useless application. However, with a little bit of thought, it can be realized that by using this tool in the Information Gathering stage of a penetration test, you will possibly find a large number of targets you didn't know existed, and this will enhance your chances of a successful penetration test YouTube VideoWatch this video on YouTube.