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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 resources to...

Possibly the most detailed CVE security vulnerability source on the internet. You can search for software and hardware vendors, products and exact version numbers of products and easily view security vulnerabilities related to them. You can view ...

Juniper Networks offers high-performance network solutions that help service providers, enterprises, and public sector organizations create value and accelerate business success.

Tenable Network Security is the premier provider of network security products, solutions and services and is the innovator and owner of the Nessus vulnerability scanner.

Internet Security Systems Home

Joomla! Discussion Forums

I’ve been using Linux since 1995. Now I’m sharing tips, tricks and things you need to know.

The Exploit Database - Exploits, Shellcode, Vulnerability reports, 0days, remote exploits, local exploits, security articles, tutorials and more.

Comprehensive CVE vulnerability database that integrates all U.S. Government publicly available vulnerability resources. Repository of information technology security content automation.

Linux blog by Vivek - Includes news, help, tutorials, programming, tips and how-to guides for Linux, UNIX, and BSD.

The best online security training in the world. Get your offensive security professional certification now!