Moodle is developed in Linux using Apache, MySQL, and PHP (known as the LAMP platform). If you have a choice, this is the preferred environment. There is ongoing debate whether PostgreSQL is the more suitable database option, but we will stick with MySQL as this is the system most administrators are most familiar with.
Also, some organizations are bound to using Microsoft SQL or Oracle. If this is the case, please refer to the respective installation guide as this is beyond the scope of this book.
download.moodle.org to download Moodle. As you can see, there are quite a number of distributions to choose from.
There are four types of builds available on Moodle's download site: