> For the complete documentation index, see [llms.txt](https://docs.infotopics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.infotopics.com/mailscheduler/getting-started/requirements/linux.md).

# Linux

MailScheduler has been tested on the following Linux distributions:

* Ubuntu 20.04 or later
* Debian 10 and newer
* Red Hat 8 and newer

For other distributions, please contact our support team for assistance.

{% hint style="info" %}
Ensure that your system is up-to-date before proceeding with the installation.
{% endhint %}

### Network requirements

There are a few prerequisites and things you’ll need before the installation:

* The installation will temporarily boot up a webserver on a random port for the web-based installation. Be sure this port is open in the firewall. It is also possible to define your own port. 
* Permissions: sudo privileges are necessary for executing installation commands.
* We require internet access during the installation procedure.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Requirements</strong></td><td>Overview all requirements</td><td><a href="/pages/APUrkp4LZV9Jfjc8rdqY">/pages/APUrkp4LZV9Jfjc8rdqY</a></td></tr><tr><td><strong>Getting started</strong></td><td>Next step in the installation</td><td><a href="/pages/rz0WErYyMN93oVwurMeR">/pages/rz0WErYyMN93oVwurMeR</a></td></tr></tbody></table>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.infotopics.com/mailscheduler/getting-started/requirements/linux.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.