Information Security

Backtrack 4: Information Gathering: DNS: Dnsmap – Subdomain brute-forcing

Today I will be reviewing Dnsmap from the Backtrack 4 Distribution. Dnsmap was originally released back in 2006 and has become a standard tool included is every backtrack release. There are other tools which preform the same tasks but I am a firm believer that a pentester/hacker should have the choice of as many tools as possible. My only small issue with this tool is speed, meaning it is not multi threaded however the author says in the readme.txt that he is addressing that issue. Dnsmap is mainly meant to be used by pentesters during the information gathering/enumeration phase of infrastructure security assessments. During the enumeration stage, the security consultant would typically discover the target
company’s IP netblocks, domain names, phone numbers, etc …