all unix, linux and other unix-like operating systems are families of computer operating systems derived from the original unix system from at&t bell laboratories. today, the largest unix descendent directly certified as unix is macos by apple. the original commercial unix derivatives included hp-ux, aix and sunos, to name a few. the diversity and perceived incompatibility between various unix systems led to the creation of interoperability standards including the portable operating system interface (posix). we provide free linux and unix shell scripting, system administration and other programming help.

provides instruction guides, how-tos, troubleshooting tips and tricks on linux, database, hardware, security, web and open source for both newbies and geeks – thegeekstuff by ramesh natarajan

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.

linux tips, hacks, tutorials, and ideas in blog

the linux documentation project is working towards developing free, high quality documentation for the linux operating system. the overall goal of the ldp is to collaborate in all of the issues of linux documentation.

reddit is a network of communities where people can dive into their interests, hobbies and passions. there's a community for whatever you're interested in on reddit.

we are an infrastructure as a service provider specialized in high-performance and high-availability iaas with specialized technical support.

we have guides that teach you how to setup your home or internet router.