1. theory about Footprinting
2. passive gathering information
	1. Get ip: 	- whosip
		-cai add-on: showip
	2. Reverse IP: 
	3. Created day, Expires day
	4. Location: flagfox
	5. DNS
	6. Administrator:
			- Phone
			- Email
			- Address
	7. OS: server spy2
	8. emails
	9. ranking
3. tools:
	1. Email Spider
	2. Email Tracking pro
	3.PointToMail
	4. NeoTrace
	5. ReadNotify
	6. SmartWhosip
	7. Archive.org
	8. Whosip.sc
	9. reverse IP: Seologs.com/ip-domains.html
	10. netcraft.com
	11. Firefox Molliza + Add on
	12. Whosip
4. defend: 
	-> Register to managerment hosting
	-> Linux: modsecurity trong Apache_httpd
	-> Microsoft: dng Servermask hoac URLScan