adding recon info

recon/README.md

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+# Active and Passive Reconnaissance Tips and Tools
+
+## Passive Recon
+
+### Website Exploration and "Google Hacking"
+* censys - https://censys.io/
+* netcraft - https://searchdns.netcraft.com/
+* Google Hacking Database (GHDB) - https://www.exploit-db.com/google-hacking-database/
+* ExifTool - https://www.sno.phy.queensu.ca/~phil/exiftool/
+* Certficate Search - https://crt.sh/
+* Google Transparency Report - https://transparencyreport.google.com/https/certificates
+* SiteDigger - http://www.mcafee.com/us/downloads/free-tools/sitedigger.aspx
+* FOCA - 	http://www.informatica64.com/DownloadFOCA
+
+### Social Media
+* A tool to scrape LinkedIn: https://github.com/dchrastil/TTSL
+* cree.py	http://ilektrojohn.github.com/creepy/
+
+### Whois
+WHOIS information is based upon a tree hierarchy. ICANN (IANA) is the authoritative registry for all of the TLDs and is a great starting point for all manual WHOIS queries.
+* ICANN - http://www.icann.org
+* IANA - http://www.iana.com
+* NRO - http://www.nro.net
+* AFRINIC - http://www.afrinic.net
+* APNIC - http://www.apnic.net
+* ARIN - http://ws.arin.net
+* LACNIC - http://www.lacnic.net
+* RIPE - http://www.ripe.net
+
+## BGP looking glasses
+* BGP4 - http://www.bgp4.as/looking-glasses
+* BPG6 - http://lg.he.net/
+
+## DNS
+* dnsenum -	http://code.google.com/p/dnsenum
+* dnsmap - http://code.google.com/p/dnsmap
+* dnsrecon - http://www.darkoperator.com/tools-and-scripts
+* dnstracer - http://www.mavetju.org/unix/dnstracer.php
+* dnswalk - http://sourceforge.net/projects/dnswalk
+
+### Other Great Intelligence Gathering Sources and Tools
+* Resources from Pentest-standard.org - http://www.pentest-standard.org/index.php/PTES_Technical_Guidelines#Intelligence_Gathering
+
+## Active Recon
+* Tons of references to scanners and vulnerability management software for active reconnaissance - http://www.pentest-standard.org/index.php/PTES_Technical_Guidelines#Vulnerability_Analysis