theHarvester

theHarvester is a tool for gathering e-mail accounts, subdomain names, virtual hosts, open ports/ banners, and employee names from different public sources (search engines, pgp key servers).

It is a simple tool but very effective for early stages of penetration testing or just to know the visibility of your company on the Internet.

How to:

type theharvester -d [url target] -l [limit] -b [search engine], in this example i used facebook as the target and google as the search engine.

This is the result:

 

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