The harvester is a tool for gathering the information about email account, email subdomain, and hostname.
This tool designed to help the penetration tester on an earlier step. the sources support are:
Google – emails, subdomain
Bing Search – emails, subdomains, virtual host
Linkedln – Employee name
etc.
In Kali Linux, this tool already exists and try to run the harvester. after that, type in the harvester like this:
-d means the URL target.
-l means the limits when the tool running for searching the data results:
and -b means the search engine.
furthermore, it needs time for a while and the result would be like this: