# Preparing your system

{% hint style="info" %}
Please follow the steps to install Screena Portal in this order:

1. [**Preparing your system**](/resources/how-to/install-screena-portal/preparing-your-system.md) **(you are here)**
2. [Installing Screena Portal backend](/resources/how-to/install-screena-portal/installing-screena-portal-backend.md)
3. [Launching Screena Portal backend](/resources/how-to/install-screena-portal/launching-screena-portal-backend.md)
4. [Installing the web server](/resources/how-to/install-screena-portal/installing-the-web-server.md)
5. [Configuring Screena Portal](/resources/how-to/install-screena-portal/configuring-screena-portal.md)
   {% endhint %}

Before you begin, ensure that you have a recent version of JDK (Java Development Kit), a compatible database and a compatible web server installed and configured on your system:

## Java Development Kit

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td>JDK 17 or higher</td><td><a href="https://www.oracle.com/java/technologies/downloads/">Download JDK 17+</a></td><td></td><td><a href="/files/wLh19UI28ebFObUkSHZ5">/files/wLh19UI28ebFObUkSHZ5</a></td></tr></tbody></table>

## Compatible databases

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td>PostgreSQL 12 or higher</td><td><a href="https://www.postgresql.org/download/">Download PostgreSQL 12+</a></td><td></td><td><a href="/files/9c2nxOkY2w2rBU2LEa3l">/files/9c2nxOkY2w2rBU2LEa3l</a></td></tr><tr><td>MariaDB 10.5 or higher</td><td><a href="https://mariadb.com/downloads/">Download MariaDB 10.5+</a></td><td></td><td><a href="/files/uUQ21braaKO9hctPCDZs">/files/uUQ21braaKO9hctPCDZs</a></td></tr><tr><td>MySQL 8.0 or higher</td><td><a href="https://dev.mysql.com/downloads/">Download MySQL 8.0+</a></td><td></td><td><a href="/files/JJgyxp1wYWmvJZBmj1Tc">/files/JJgyxp1wYWmvJZBmj1Tc</a></td></tr><tr><td>Amazon RDS for PostgreSQL, MariaDB, or MySQL</td><td><a href="https://aws.amazon.com/rds/">Create RDS instance</a></td><td></td><td><a href="/files/08RbE4GaagPkgTp734Hs">/files/08RbE4GaagPkgTp734Hs</a></td></tr></tbody></table>

## Compatible web servers

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td>Nginx 1.18 or higher</td><td><a href="https://nginx.org/en/download.html">Download Nginx 1.18+</a></td><td></td><td><a href="/files/06Yawpld1wZpHgH0KvE9">/files/06Yawpld1wZpHgH0KvE9</a></td></tr><tr><td>Apache 2.4 or higher.</td><td><a href="https://httpd.apache.org/download.cgi">Download Apache 2.4+</a></td><td></td><td><a href="/files/dAGC4uYsyyLNrELWnZPN">/files/dAGC4uYsyyLNrELWnZPN</a></td></tr></tbody></table>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.screena.ai/resources/how-to/install-screena-portal/preparing-your-system.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
