We assume that you have a PC with a copy of Ubuntu 12.04. We are using Ubuntu because it comes with a Long-Term Support (LTS). That means the community will maintain this version for five years.

Furthermore, it is necessary to have a basic knowledge of Linux and command tools such as the terminal, vim, creating folders, and so on. If you need to learn these tools, you can find a lot of relevant resources on the Internet, or you can find books on these topics instead.