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Kali Linux Intrusion and Exploitation Cookbook by Ishan Girdhar, Dhruv Shah

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Open-source information gathering

In this recipe, we will look at how to make use of tools meant for online information gathering. We will cover tools that serve the purpose of gathering information with respect to Whois, domain tools, and MX mail servers. Shodan is a powerful search engine that locates drives for us over the Internet. With the help of various filters, we can find information about our targets. Among hackers, it is also called the world's most dangerous search engine.

Getting ready

We will make use of tools such as DNsenum for the purpose of Whois enumeration, find out all the IP addresses involved in a domain, and also how Shodan provides us with open-port information of the target searched.

How to do it...

The steps are as follows: ...

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