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Category: Computers and IT

MQTT server mosquitto on Raspberry Smarthome server does not start

Problem

Mosquitto server start problem:

After a few days of absence, I was unfortunately faced with some problems on my Raspberry smart home server.

Among other things, the Mosquitto MQTT server, which is supposed to receive and process messages from the various iot devices, was not available.

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SAP: ABAP System Fields – Part 5: Batch and Batch Input Processing Information

The following are important SAP ABAP system fields of the SYST structure of the ABAP Dictionary.

Part 5: Information on Batch and Batch Input Processing

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RFID: Tutorial on integrating RFID in NodeRED environment using IBM BlueMIX Technology

The linked Tutorial gives a brief overview of all the steps that are necessary to integrate a RC522 RFID Reader via Raspberry PI into NodeRED environment using IBM Bluemix services, watson IOT and nodes.

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