SecurityFocus is designed to facilitate discussion on computer security related topics, create computer security awareness, and to provide the Internet's largest and most comprehensive database of computer security knowledge and resour...
Security scanner for Linux, BSD, Solaris, and other flavors of Unix. Performs over 900 remote security checks, and suggests solutions for security problems.
The SANS Institute, offering computer security training for system administrators, computer security professionals, and network administrators, is a cooperative research and education organization that has many consensus projects to return...