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Mastering Kali Linux for Advanced Penetration Testing by Robert W. Beggs

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DNS reconnaissance and route mapping

Once a tester has identified the targets that have an online presence and contain items of interest, the next step is to identify the IP addresses and routes to the target.

DNS reconnaissance is concerned with identifying who owns a particular domain or series of IP addresses (whois-type information), the DNS information defining the actual domain names and IP addresses assigned to the target, and the route between the penetration tester or the attacker and the final target.

This information gathering is semi-active—some of the information is available from freely available open sources, while other information is available from third parties such as DNS registrars. Although the registrar may collect IP addresses ...

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