> For the complete documentation index, see [llms.txt](https://xoops.gitbook.io/xoonips-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xoops.gitbook.io/xoonips-tutorial/3installation/2server_structure_components.md).

# 2. Server structure components

The followings are necessary software for activating XooNIps.

| OS         | Not specified                                     |
| ---------- | ------------------------------------------------- |
| Web server | Apache 2.0 or later versions                      |
| Database   | MySQL 5.1 or later (Must be applicable to InnoDB) |
| PHP        | PHP 5.5 or later                                  |
| XOOPS      | XOOPS 2.5.8+                                      |