---
title: "Prerequisites to using the mqtt() destination"
url: "https://axoflow.com/docs/axosyslog-core/4.28/chapter-destinations/destination-mqtt-intro/destination-mqtt-prer/"
last_modified: "2023-06-27T21:05:00+02:00"
---

> For the complete documentation index, see [llms.txt](https://axoflow.com/docs/axosyslog-core/4.28/llms.txt).

# Prerequisites to using the mqtt() destination

Using the current implementation of the `mqtt()` destination has the following prerequisites:

- Installing the `eclipse-paho-mqtt-c` library.

  > **Note:**
  > The default package manager for some Linux operating systems contains the `eclipse-paho-mqtt-c` library, but depending on your OS, you may have to install the library manually. For more information about how you can download and install the `eclipse-paho-mqtt-c` library, see [Eclipse Paho](https://www.eclipse.org/paho/index.php?page=clients/c/index.php) on the Eclipse Foundation website.
- Having a `broker` entity in a functional MQTT system.

  > **Note:**
  > In your configuration, you will specify the `broker` entity of your MQTT system in the `address()` option of your `mqtt()` source.

Last modified June 27, 2023: [Moves content/docs to content/ to shorten output url (a5fcf1ed)](https://github.com/axoflow/axosyslog-core-docs/commit/a5fcf1ed4956f586bc12af2b775e10aa75c1e630)