# Server Requirements

## Summary

This page lists the recommended webserver, PHP version, required settings, supported RDBMS engines and recommended PHP extensions for running Dotkernel Admin.

## Details

For production, we highly recommend a *nix based system.

## Webserver

### Apache >= 2.2

* mod_rewrite
* .htaccess support `(AllowOverride All)`

> The repository includes a default `.htaccess` file in the `public` folder.

### Nginx

You need to convert the provided Apache related `.htaccess` file into Nginx configuration instructions.

## PHP >= 8.3

Both mod_php and FCGI (FPM) are supported.

## Required Settings and Modules & Extensions

* memory_limit >= 128M
* upload_max_filesize and post_max_size >= 100 M (depending on your data)
* mbstring
* CLI SAPI (for Cron Jobs)
* Composer (added to $PATH)

## RDBMS

* Tested with MariaDB 10.7, 10.11 LTS, 11.4 LTS, and 11.8 LTS
* Tested with PostgreSQL 13 and above

> MySQL is not supported because of missing UUID support.

## Recommended extensions

* `opcache`
* `pdo_mysql`, `pdo_pgsql` or `mysqli` (if using MariaDB or PostgreSQL as RDBMS)
* `dom` - if working with markup files structure (HTML, XML, etc.)
* `simplexml` - working with XML files
* `gd`, `exif` - if working with images
* `zlib`, `zip`, `bz2` - if compressing files
* `curl` (required if APIs are used)
* `sqlite3` - for tests

## FAQ

**Q: What is the minimum required PHP version?**

A: PHP 8.3 or above, supported through either mod_php or FCGI (FPM).

**Q: Which databases are supported?**

A: MariaDB (10.7, 10.11 LTS, 11.4 LTS, 11.8 LTS) and PostgreSQL (13 and above); MySQL is not supported because it lacks UUID support.

**Q: What webserver modules are required?**

A: On Apache, `mod_rewrite` and `.htaccess` support (`AllowOverride All`); on Nginx, the provided `.htaccess` file must be converted into Nginx configuration instructions.