Passive Information Gathering
Whois Enumeration
Whois lookup
whois megacorpone.com -h 192.168.50.251
Reverse whois lookup
whois 38.100.193.70 -h 192.168.50.251
Google Hacking
site:megacorpone.com
site:megacorpone.com filetype:txt
site:megacorpone.com -filetype:html
Find Directory listings
intitle: "index of" "parent directory"