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Best Free Computer Security Training Materials

Rainbow Books - Great for studying for the CISSP Exam

TCP/IP References

Maximum Security: A Hacker's Guide to Protecting Your Internet Site and Network 
Computer Vulnerabilities 

Computer Vulnerabilities

Security Bibliography - many papers and books to download. 

Firewalls Complete - Table of Contents
Handbook of Information Security Management 
Network Security Library - Information, publications and books about network security, (in)security: UNIX, Windows, NetWare, WWW, Firewalls, Intrusion Detection, Security Policy, etc. Hundreds of books, articles and FAQs online. 

Applied Cryptography - all chapters are available for free download.
Godzilla Cryptography Tutorial - many slides and presentations on this one. 
Computer Security Research Papers 

The CISSP Open Study Guide (OSG) Download Section
The TECS Computer Security Tutorial

IT Today, The Free Online IT Magazine, specializes in computer security The IT Industry Portal - Security Archives

Security Resources and Links from The Internet Security Conference

Slide Presentation on various network security vulnerabilities, including session hijacking, man in the middle attacks, ARP spoofing, DNS games, TCP sequence number guessing and so on. Also discusses some of the packages (dsniff, ettercap) that have been developed recently to exploit these vulnerabilities.

Fred Cohen & Associates:

  • 20 Tips on Software Security
  • 50 Ways to Defeat Your Firewall
  • 50 Ways to Defeat Your PKI and Other Cryptosystems
  • 195 Famous Computer Exploits - Bill Wall's List
  • 30 Lies About Secure Electronic Commerce: The Truth Exposed
  • 50 Ways to Protect Your Information Assets When Cruising the Internet
  • 50 Ways to Defeat Your Intrusion Detection System
  • 50 Ways to Attack Your World Wide Web Systems


Test Providers that offer Free (ISC)2 CISSP Certification Exam Practice Questions:

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