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Linux.com - For the community, by the community, Linux.com is the central source for Linux information, software, documentation, how-tos and answers across the server, desktop/netbook, mobile, and embedded areas.

A help and support forum for Ubuntu Linux.

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.

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

Find technology questions and answers in this community of information technology (IT) experts and professionals.

Zimbra provides open source email and calendar groupware software, Zimbra is a popular choice for Linux and Mac OS X email servers and supports SaaS deployment, appliances and virtualization platforms.

IT Best Practices, How-tos, Product Reviews, discussions, articles for IT Professionals in small and medium businesses

Novell is a leading provider of infrastructure software. Our vision is helping people and technology to work as one. Our mission is to help customers reduce the cost, complexity and risk of computing on any platform.

Experts Exchange enables people with technology problems to quickly and easily solve their problems by collaborating with experts from around the world.

Computer Help from your Friendly How-To Geek

Newbies Linux guides on installing Linux and networking setup with Internet and LAN servers administration including Web, e-mail, proxy, firewall, file, and print servers. Beginner tutorials on Linux basics, networking, compiling software, and securi...