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iot

Running a local Mosquitto broker and publishing and subscribing with command-line clients

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Taught in

Requires

Required by

Local knowledge map

Local knowledge map

Choosing MQTT QoS 0, 1 or 2 by what each guarantees and costs,… Isolating customers' devices, topics and data in one system Running MQTT over TLS with server verification and… Segmenting networks and scoping credentials and ACLs… Telling a device's identity (ID, key, certificate) apart… Giving each device its own MQTT credentials and a topic ACL that… Matching MQTT topics against filters with + and #, including the… Running a local Mosquitto broker and publishing and… Choosing between HTTP, MQTT and WebSockets by direction, overhead,… Designing a topic tree for devices with telemetry, command an… Writing event-driven rules that react to device messages… Explaining publish/subscribe through a broker and… Classifying a message as telemetry, a command or state, and… Tracing a TCP connection's handshake, byte strea…

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Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.