Opensource, Security, Tools
Andiparos: Proxy
https://code.google.com/archive/p/andiparos/
Arachni: Penetration testing
http://www.arachni-scanner.com
BackTrack
http://www.backtrack-linux.org
Kali
BeEF: Penetration testing
Ettercap: MITM
http://ettercap.github.io/ettercap
GoLismero: Web Secutiry testing
Google hacking database (GHDB)
https://www.exploit-db.com/google-hacking-database
Google application security tools
https://www.google.com/about/appsecurity/tools
Grabber: Web application scanner
http://rgaucher.info/beta/grabber
Grendel: Web application scanner
https://sourceforge.net/projects/grendel
Keyczar: Cryptographic toolkit
https://github.com/google/keyczar
Kismet: Wireless network detector
Metasploit
ModSecurity: WAF
Nikto2: Web server testing
Nmap
OpenVAS
OSSEC
OWASP
https://www.owasp.org/index.php/Appendix_A:_Testing_Tools
Packet Storm
http://packetstormsecurity.org/files/tags/scanner
Paros Proxy
http://www.testingsecurity.com/paros_proxy
Qubes OS
Snort
SonarQube: Manage code quality
https://github.com/SonarSource/sonarqube
SQLMap
Tcpdump
Vega: Web vulnerability scanner
W3AF: SQL injection, cross-site scripting detection tool
Wapiti: Web vulnerability scanner
Wireshark
Wfuzz: Brute force GET and POST
http://code.google.com/p/wfuzz