HEATKEYS

Penetration Testing and Security Auditing Linux Distribution

- UNIX and Linux Forums - Learn UNIX, UNIX commands, Linux, Operating Systems, System Administration, Programming, Shell, Shell Scripts

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

The goal of about Linux is to provide all the help necessary to make your use of Linux a success.

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Tecmint - Linux Howtos, Tutorials, Guides, News, Tips and Tricks.

Wonder How To is your guide to free how to videos on the Web. Search, Browse and Discover the best how to videos across the web using the largest how to video index on the web. Watch the best online video instructions, tutorials, & How-To...

Computer Help from your Friendly How-To Geek

LinuxQuestions.org offers a free Linux forum where Linux newbies can ask questions and Linux experts can offer advice. Topics include security, installation, networking and much more.