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• Backlog: Sets the number of connections to keep a backlog. The default is 100. 

• DisableRetainedFile: The broker stores the last retained message and the corresponding QoS for that topic. The valid value is true or false. The default is false.

• ClientID: This parameter enables limitations for specific MQTT clients. To configure more than one MQTT client, you need to create a whole new line and change the last number of the ClientID to the next sequence sequential number.

  
  

  Code Block
  add key="ClientID1" value="<MQTTClientID>; Topic1=<Topic>, Subscribe1=<True or False>, Publish1=<True or False>" />

  
  

  There are 4 internal parameters:

• value: Sets the MQTT Client ID
• Topic: Specific topic that will set the limitation
• Subscribe: Flag (true or false) that allows the client to subscribe to a topic (can receive messages)

• Publish: Flag (true or false) that allows the client to publish a topic (can write messages) 

  Code Block
  <add  key="ClientID1"  value="MQTTClientTest;Topic1=*,Subscribe1=True,  Publish1=True"/> <add  key="ClientID2"  value="32443fsa6546fa;Topic1=*,Subscribe1=True,  Publish1=False"/> <add  key="ClientID3"  value="7323rt304343r4;Topic1=*,Subscribe1=False,Publish1=True"/>

  
  

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