Public MQTT Brokers - Revision history

Rhg: /* Cloud Based Implementation of IoT Using MQTT Brokers */

2022-06-02T19:58:53Z

Cloud Based Implementation of IoT Using MQTT Brokers

← Older revision		Revision as of 20:58, 2 June 2022
Line 24:		Line 24:
	In summary, public servers are good for projects and for setting up systems. Once they need to be scaled commercially then a private MQTT server should be used.		In summary, public servers are good for projects and for setting up systems. Once they need to be scaled commercially then a private MQTT server should be used.

	Public MQTT servers are probably best as backup routes when a commercial server falls down, only initiated when needed, and closed when normal connections resume.
			{{note\|1=Public MQTT servers are probably best as backup routes when a commercial server falls down, only initiated when needed, and closed when normal connections resume. \|2=reminder}}

	== Public MQTT Brokers ==		== Public MQTT Brokers ==

Rhg: /* Cloud Based Implementation of IoT Using MQTT Brokers */

2022-06-02T19:58:38Z

Cloud Based Implementation of IoT Using MQTT Brokers

← Older revision		Revision as of 20:58, 2 June 2022
Line 12:		Line 12:
	* A central list can be maintained (the table below can be loaded into software from this site)		* A central list can be maintained (the table below can be loaded into software from this site)
	* With three or more brokers reliably available, one can establish primary and secondary routes, adding resilience and making for increased reliability		* With three or more brokers reliably available, one can establish primary and secondary routes, adding resilience and making for increased reliability
	* No maintenance, and no costs. A completely free approach to communications.		* No maintenance, and no costs. A completely free approach to communications. (Note that running your own MQTT broker is free).
	* Data ~~can~~ be encrypted.		Disadvantages:
	* ~~It is possible~~ to ~~share data by providing someone~~ with ~~encryption keys that lets them subscribe~~ to ~~data~~.
			* Topics and payloads need securing and separating from other traffic
			* Not saleable for commercial use

			The following additional measures should be implemented:
			* Data should be encrypted is any way private.
			*Topics should be adjusted to a log and unique identifier to separate from other traffic on the public server.
			*Topics and payloads can be encrypted in an object along with a timestamp, and then all messages can be sent over a single unique identifier.
			In summary, public servers are good for projects and for setting up systems. Once they need to be scaled commercially then a private MQTT server should be used.

			Public MQTT servers are probably best as backup routes when a commercial server falls down, only initiated when needed, and closed when normal connections resume.

	== Public MQTT Brokers ==		== Public MQTT Brokers ==

Rhg at 19:49, 2 June 2022

2022-06-02T19:49:47Z

← Older revision		Revision as of 20:49, 2 June 2022
Line 113:		Line 113:
	</pre>		</pre>

	[[Category:Functions]]		[[Category:Functions]] [[Category:Node-RED]]

Rhg: /* Node-RED Automation */

2022-06-02T19:30:42Z

Node-RED Automation

Show changes

Rhg at 19:29, 2 June 2022

2022-06-02T19:29:30Z

← Older revision		Revision as of 20:29, 2 June 2022
Line 15:		Line 15:
	* Data can be encrypted.		* Data can be encrypted.
	* It is possible to share data by providing someone with encryption keys that lets them subscribe to data.		* It is possible to share data by providing someone with encryption keys that lets them subscribe to data.

	~~== Node-RED MQTT Automation ==~~
	~~Node-RED version 2 now allows one to manage MQTT subscriptions at run time through software, allowing the processes of encryption and subscribing to be automated.~~

	== Public MQTT Brokers ==		== Public MQTT Brokers ==
Line 106:		Line 103:
	* https://www.emqx.com/en/mqtt/public-mqtt5-broker		* https://www.emqx.com/en/mqtt/public-mqtt5-broker


			==Node-RED Automation==

			Node-RED version 2 now allows one to manage MQTT subscriptions at run time through software, allowing the processes of encryption and subscribing to be automated.


			<pre>
			[{"id":"564812e6529f65a5","type":"tab","label":"Flow 2","disabled":false,"info":"","env":[]},{"id":"a33ecb08689a7eb7","type":"mqtt in","z":"564812e6529f65a5","name":"mqtt1","topic":"","qos":"2","datatype":"auto","broker":"209b6731446a7c26","nl":false,"rap":true,"rh":0,"inputs":1,"x":810,"y":220,"wires":[["6c88cfc3c6f35ded"]]},{"id":"bc150d0459b9610b","type":"mqtt out","z":"564812e6529f65a5","name":"","topic":"","qos":"0","retain":"false","respTopic":"","contentType":"","userProps":"","correl":"","expiry":"","broker":"209b6731446a7c26","x":810,"y":520,"wires":[]},{"id":"97920119052172d3","type":"inject","z":"564812e6529f65a5","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"[{\"broker\":\"broker.emqx.io\",\"port\":8883,\"portTSL\":8883}]","payloadType":"json","x":190,"y":260,"wires":[["55272ae6e147c672"]]},{"id":"c8790f20c7b81ee6","type":"function","z":"564812e6529f65a5","name":"connect","func":"var brokers = flow.get(\"brokers\") \|\| [];\n\nvar msg1 = {};\n\nmsg1.action = \"connect\";\nmsg1.broker = brokers[0];\nmsg1.broker.force=true;\n\nvar msg2 = {};\n\nmsg2.action = \"connect\";\nmsg2.broker = brokers[1];\nmsg2.broker.force=true;\n\n\nreturn [msg1,msg2];","outputs":2,"noerr":0,"initialize":"","finalize":"","libs":[],"x":600,"y":260,"wires":[["a33ecb08689a7eb7"],["84911e40ee113652"]]},{"id":"55272ae6e147c672","type":"change","z":"564812e6529f65a5","name":"","rules":[{"t":"set","p":"brokers","pt":"flow","to":"[{\"broker\":\"broker.emqx.io\",\"port\":8883,\"portTSL\":8883},{\"broker\":\"mqtt.fluux.io\",\"port\":8883,\"portTSL\":8883}]","tot":"json"}],"action":"","property":"","from":"","to":"","reg":false,"x":380,"y":260,"wires":[["c8790f20c7b81ee6","735e31d28738772f"]]},{"id":"7a4bc93a4ad7fca6","type":"link in","z":"564812e6529f65a5","name":"connect","links":[],"x":225,"y":180,"wires":[["55272ae6e147c672"]]},{"id":"84911e40ee113652","type":"mqtt in","z":"564812e6529f65a5","name":"mqtt2","topic":"","qos":"2","datatype":"auto","broker":"dcd4fcb0c3ba9634","nl":false,"rap":true,"rh":0,"inputs":1,"x":810,"y":300,"wires":[["6c88cfc3c6f35ded"]]},{"id":"37622328e8ce31d5","type":"mqtt out","z":"564812e6529f65a5","name":"","topic":"","qos":"0","retain":"false","respTopic":"","contentType":"","userProps":"","correl":"","expiry":"","broker":"dcd4fcb0c3ba9634","x":930,"y":580,"wires":[]},{"id":"ae188866b99e9304","type":"function","z":"564812e6529f65a5","name":"","func":"\n\nflow.set(msg.status.source.name + \"status\",\"\"+msg.status.text);\n\nmsg.topic = msg.status.source.name + \"status\";\nmsg.payload = msg.status.text;\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":980,"y":400,"wires":[["c95f8190f6df0cc0"]]},{"id":"b46bf8618475f23d","type":"status","z":"564812e6529f65a5","name":"","scope":["a33ecb08689a7eb7","84911e40ee113652"],"x":820,"y":400,"wires":[["ae188866b99e9304"]]},{"id":"c95f8190f6df0cc0","type":"debug","z":"564812e6529f65a5","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1130,"y":400,"wires":[]},{"id":"4bf70e392eca5550","type":"switch","z":"564812e6529f65a5","name":"","property":"mqtt1status","propertyType":"flow","rules":[{"t":"cont","v":".connected","vt":"str"},{"t":"else"}],"checkall":"true","repair":false,"outputs":2,"x":630,"y":540,"wires":[["bc150d0459b9610b","02eaf674b24f20df"],["db9c6cba958073d0"]]},{"id":"db9c6cba958073d0","type":"switch","z":"564812e6529f65a5","name":"","property":"mqtt2status","propertyType":"flow","rules":[{"t":"cont","v":".connected","vt":"str"},{"t":"else"}],"checkall":"true","repair":false,"outputs":2,"x":750,"y":620,"wires":[["37622328e8ce31d5"],["2876d1fe18c7557a"]]},{"id":"83eec79b9b452b33","type":"link in","z":"564812e6529f65a5","name":"publish","links":["f7be6a97d63cad07"],"x":185,"y":540,"wires":[["1b04abaf18045792"]]},{"id":"2876d1fe18c7557a","type":"function","z":"564812e6529f65a5","name":"not sent","func":"\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":940,"y":680,"wires":[[]]},{"id":"6c88cfc3c6f35ded","type":"link out","z":"564812e6529f65a5","name":"incoming","mode":"link","links":["63c5ee9dd5dd59aa"],"x":985,"y":260,"wires":[]},{"id":"63c5ee9dd5dd59aa","type":"link in","z":"564812e6529f65a5","name":"","links":["6c88cfc3c6f35ded"],"x":215,"y":720,"wires":[["37274bfdb40f80c8","c87ed47ca0b33e61"]]},{"id":"37274bfdb40f80c8","type":"debug","z":"564812e6529f65a5","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":390,"y":660,"wires":[]},{"id":"beb8f0fda6a53533","type":"credentials","z":"564812e6529f65a5","name":"","props":[{"value":"publicTopic","type":"msg"}],"x":330,"y":80,"wires":[["69f367686b656cb7"]]},{"id":"bf21787fde563136","type":"inject","z":"564812e6529f65a5","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":170,"y":80,"wires":[["beb8f0fda6a53533"]]},{"id":"69f367686b656cb7","type":"change","z":"564812e6529f65a5","name":"","rules":[{"t":"set","p":"publicTopic","pt":"flow","to":"publicTopic","tot":"msg","dc":true}],"action":"","property":"","from":"","to":"","reg":false,"x":530,"y":80,"wires":[[]]},{"id":"1b04abaf18045792","type":"function","z":"564812e6529f65a5","name":"prefix","func":"\nmsg.payload = JSON.stringify({ \"topic\": msg.topic, \"payload\": msg.payload });\n\nmsg.topic = flow.get(\"publicTopic\") + \"/\" + msg.topic.split(\"/\")[3];\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":310,"y":540,"wires":[["e388a8917e1a8a1f"]]},{"id":"e388a8917e1a8a1f","type":"encrypt","z":"564812e6529f65a5","name":"","algorithm":"AES","key":"aaabbbccc","x":460,"y":540,"wires":[["4bf70e392eca5550"]]},{"id":"735e31d28738772f","type":"delay","z":"564812e6529f65a5","name":"","pauseType":"delay","timeout":"5","timeoutUnits":"seconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"allowrate":false,"outputs":1,"x":420,"y":320,"wires":[["da72769bf2270a2e","7a497090087e6f05"]]},{"id":"da72769bf2270a2e","type":"function","z":"564812e6529f65a5","d":true,"name":"subscribe","func":"\nvar publicTopic = flow.get(\"publicTopic\") \|\| \"unknown\";\n\n\n\nvar msg1 = {};\n\nmsg1.action = \"subscribe\";\nmsg1.topic = [{\"topic\":publicTopic + \"/cmd\", \"qos\":0},{\"topic\":publicTopic + \"/set\", \"qos\":0}];\n\nvar msg2 = {};\n\nmsg2.action = \"subscribe\";\nmsg2.topic = [{\"topic\":publicTopic + \"/cmd\", \"qos\":0},{\"topic\":publicTopic + \"/set\", \"qos\":0}];\n\nif (flow.get(\"mqtt1status\").indexOf(\".connected\")<0) { msg1 = null; }\nif (flow.get(\"mqtt2status\").indexOf(\".connected\")<0) { msg2 = null; }\n\nreturn [msg1,msg2];","outputs":2,"noerr":0,"initialize":"","finalize":"","libs":[],"x":600,"y":320,"wires":[["a33ecb08689a7eb7"],["84911e40ee113652"]]},{"id":"02eaf674b24f20df","type":"debug","z":"564812e6529f65a5","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":830,"y":480,"wires":[]},{"id":"c8383d21cfd1c1bb","type":"debug","z":"564812e6529f65a5","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":690,"y":720,"wires":[]},{"id":"7a497090087e6f05","type":"function","z":"564812e6529f65a5","d":true,"name":"subscribe","func":"\nvar publicTopic = flow.get(\"publicTopic\") \|\| \"unknown\";\n\n\n\nvar msg1 = {};\n\nmsg1.action = \"subscribe\";\nmsg1.topic = [{\"topic\":publicTopic + \"/#\", \"qos\":0}];\n\nvar msg2 = {};\n\nmsg2.action = \"subscribe\";\nmsg2.topic = [{\"topic\":publicTopic + \"/#\", \"qos\":0}];\n\nif (flow.get(\"mqtt1status\").indexOf(\".connected\")<0) { msg1 = null; }\nif (flow.get(\"mqtt2status\").indexOf(\".connected\")<0) { msg2 = null; }\n\nreturn [msg1,msg2];","outputs":2,"noerr":0,"initialize":"","finalize":"","libs":[],"x":600,"y":380,"wires":[["a33ecb08689a7eb7"],["84911e40ee113652"]]},{"id":"c87ed47ca0b33e61","type":"decrypt","z":"564812e6529f65a5","name":"","algorithm":"AES","key":"aaabbbccc","x":360,"y":720,"wires":[["cbf3d192113bc4ac"]]},{"id":"cbf3d192113bc4ac","type":"function","z":"564812e6529f65a5","name":"prefix","func":"\nvar data = JSON.parse( msg.payload );\n\nmsg.payload = data.payload;\nmsg.topic = data.topic;\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":510,"y":720,"wires":[["c8383d21cfd1c1bb"]]},{"id":"209b6731446a7c26","type":"mqtt-broker","name":"mqtt1","broker":"none","port":"1883","tls":"","clientid":"","autoConnect":false,"usetls":true,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closeQos":"0","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""},{"id":"dcd4fcb0c3ba9634","type":"mqtt-broker","name":"mqtt2","broker":"none","port":"1883","tls":"","clientid":"","autoConnect":false,"usetls":true,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closeQos":"0","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""}]
			</pre>

	[[Category:Functions]]		[[Category:Functions]]

Rhg: /* Cloud Based Implementation of IoT Using MQTT Brokers */

2022-06-02T11:12:03Z

Cloud Based Implementation of IoT Using MQTT Brokers

← Older revision		Revision as of 12:12, 2 June 2022
Line 5:		Line 5:

	When using public brokers, it is advised to consider encrypting traffic as standard. Both topics and payloads can be encrypted, with Node-RED providing nodes for such operations. Only devices that have the encryption key can find (subscribe) and make sense of the data.		When using public brokers, it is advised to consider encrypting traffic as standard. Both topics and payloads can be encrypted, with Node-RED providing nodes for such operations. Only devices that have the encryption key can find (subscribe) and make sense of the data.

			The interesting question to ask is if public brokers are as good as a dedicated private broker.

			Using public brokers has the following advantages:

			* A central list can be maintained (the table below can be loaded into software from this site)
			* With three or more brokers reliably available, one can establish primary and secondary routes, adding resilience and making for increased reliability
			* No maintenance, and no costs. A completely free approach to communications.
			* Data can be encrypted.
			* It is possible to share data by providing someone with encryption keys that lets them subscribe to data.

			== Node-RED MQTT Automation ==
			Node-RED version 2 now allows one to manage MQTT subscriptions at run time through software, allowing the processes of encryption and subscribing to be automated.

	== Public MQTT Brokers ==		== Public MQTT Brokers ==

Rhg at 11:03, 2 June 2022

2022-06-02T11:03:08Z

← Older revision		Revision as of 12:03, 2 June 2022
Line 3:		Line 3:

	https://www.opensourceforu.com/2020/10/cloud-based-implementation-of-iot-using-mqtt-brokers/		https://www.opensourceforu.com/2020/10/cloud-based-implementation-of-iot-using-mqtt-brokers/

			When using public brokers, it is advised to consider encrypting traffic as standard. Both topics and payloads can be encrypted, with Node-RED providing nodes for such operations. Only devices that have the encryption key can find (subscribe) and make sense of the data.

	== Public MQTT Brokers ==		== Public MQTT Brokers ==

Rhg at 10:58, 2 June 2022

2022-06-02T10:58:01Z

← Older revision		Revision as of 11:58, 2 June 2022
Line 90:		Line 90:

	* https://www.emqx.com/en/mqtt/public-mqtt5-broker		* https://www.emqx.com/en/mqtt/public-mqtt5-broker


			[[Category:Functions]]

Rhg at 10:57, 2 June 2022

2022-06-02T10:57:20Z

← Older revision		Revision as of 11:57, 2 June 2022
Line 1:		Line 1:
			== Cloud Based Implementation of IoT Using MQTT Brokers ==
			This is a useful article that sums up the various MQTT options.

			https://www.opensourceforu.com/2020/10/cloud-based-implementation-of-iot-using-mqtt-brokers/

			== Public MQTT Brokers ==
	{\| class="wikitable"		{\| class="wikitable"
	! colspan="1" rowspan="1" \|Name		! colspan="1" rowspan="1" \|Name

Rhg at 10:48, 2 June 2022

2022-06-02T10:48:51Z

← Older revision		Revision as of 11:48, 2 June 2022
Line 18:		Line 18:
	\|YES		\|YES
	\|NO		\|NO
	\|~~Link~~		\|http://iot.eclipse.org/sandbox.html
	\|-		\|-
	\|Mosquitto		\|Mosquitto
Line 28:		Line 28:
	\|YES		\|YES
	\|NO		\|NO
	\|~~Link~~		\|https://test.mosquitto.org/
	\|-		\|-
	\|HiveMQ		\|HiveMQ
Line 38:		Line 38:
	\|YES		\|YES
	\|NO		\|NO
	\|~~Link~~		\|https://www.hivemq.com/try-out/
	\|-		\|-
	\|Flespi		\|Flespi
Line 48:		Line 48:
	\|YES		\|YES
	\|YES		\|YES
	\|~~Link~~		\|https://flespi.com/mqtt-broker
	\|-		\|-
	\|Dioty		\|Dioty
Line 58:		Line 58:
	\|YES		\|YES
	\|YES		\|YES
	\|~~Link~~		\|http://www.dioty.co/
	\|-		\|-
	\|Fluux		\|Fluux
Line 68:		Line 68:
	\|N/A		\|N/A
	\|NO		\|NO
	\|~~Link~~		\|https://fluux.io/
	\|-		\|-
	\|EMQX		\|EMQX
Line 78:		Line 78:
	\|YES		\|YES
	\|NO		\|NO
	\|~~Link~~		\|https://emqx.io/
	\|}		\|}