What is Passive DNS and how do you leverage it in research?
CTOvision
JULY 12, 2016
To best understand passive DNS, one must first understand how DNS works and the value it brings to Internet users. DNS works like a contact application for the Internet. In DNS, this is known as an "A" record and is one of many different record types including, but not limited to AAAA (IPv6), MX (mail), NS (nameserver), and TXT (text).
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