Monkey Albino

Linux altar53.supremepanel53.com 4.18.0-553.8.1.lve.el8.x86_64 #1 SMP Thu Jul 4 16:24:39 UTC 2024 x86_64
/ lib/ firewalld/ services/

//lib/firewalld/services/mqtt.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>mqtt</short>
  <description>The Message Queuing Telemetry Transport (MQTT) is a machine-to-machine connectivity protocol. This variant of the protocol is unencrypted.</description>
  <port port="1883" protocol="tcp"/>
</service>