ITSecurity

IT certifications

1. CISSP - Certified Information Services Security Professional

2. OSSTMM - OPSA

3. ITIL

IT Security info

1. ISC2 blog

2. The Hacker's RFC

3. Cyber Security Awareness Month 2008 - Summary and Links

IT security tools

0. IT Security tools

1. Helix - a live Linux distribution oriented to Computer Forensics

2. BackTrack

3. Brutus

4. HammerOfGod tools

5. PHPIDS

6. OpenVAS - a Nessus fork

7. Zenmap

8. OpenWRT + Snort

9. WebScarab

10. Darik's Boot And Nuke - Hard drive disk wipe

11. Truecrypt

12. UCSniff VoIP sniffer

13. BotHunter

14. The Metasploit Framework

15. Tor - The Onion Router

16. SAP Penetration Testing Framework

Forensics

1. Forensic Focus

2. Volatile Systems

3. SecuriTeam

4. U.S. DoJ

IT security & networking sites

1. FOSDEM - Free and Open Source Software Developers' European Meeting

2. PacketStorm

3. OWASP

4. Sleuthkit

5. The Hacker Webzine

6. irongeek.com

7. Open Source Software Security

8. Security Compass

9. Hacking videos

10. InfoSecWriters

11. NIST CSRC Special Publications (800 Series)

12. Emerging Threats

13. PacketLife

14. CiscoBlog

15. DefCon

16. Hakin9

17. Cheat sheets

18. Informative Information for the Uninformed

19. Vyatta - open source networking

20. Milw0rm

21. OSVDB

22. Offensive Security

23. The ethical Hacker Network

24. The Vega Science Trust

25. Skype network & security

26. TCP/IP Tutorial and Technical Overview, IBM Redbook

27. FirstMonday

Commands and scripts

1. Scripts

Other open source tools

1. Scilab

2. GRASS GIS

3. Software @inria.fr

4. Software under Cecill license

5. Linux Rock Cluster

6. Celtx - media pre-production software

GRID computing

1. OpenGridForum

2. GridCafé

Notes about nmap

list scan (-sL option): enumerate every IP address in the given target netblock(s) and do a reverse-DNS lookup

nmap -sL a.b.c.d/24

nmap -sS -p -PS<ports> -PA<ports> -PU<ports> -PE -A -T<level> -oA <file> a.b.c.d/24