In this section, we'll learn how we can get comprehensive DNS information about the target website. Just to give a quick review on what DNS is, when we type FACEBOOK.COM, a DNS SERVER will convert the name into an IP address. The DNS SERVER contains a number of records, each pointing to a different domain or to a different IP. Sometimes, they point to the same IP, but in general, they request the domain name, it gets converted into an IP address, and, depending on the address, the information needs to be stored somewhere. We're going to query the DNS SERVER and see what information we can get through it. The process is illustrated in the following diagram:

We're going to be using a website called Robtex (, ...

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