Monthly Archives: Juni 2019

LetsTrust TPM SLB 9670VQ2.0 or SLB 9670XQ2.0?

A customer approached us about the difference between SLB 9670VQ2.0 and SLB 9670XQ2.0.VQ has a standard temperature range of (-20 .. +85°C), and XQ is the enhanced temperature range version (-40 .. + 85°C).As the Raspberry Pi itself has a standard temperature range, we use the VQ version on the LetsTrust TPM.

By | Juni 11th, 2019|Raspberry Pi Blog|Kommentare deaktiviert für LetsTrust TPM SLB 9670VQ2.0 or SLB 9670XQ2.0?

Changing the mountpoint on auth_on_register webhook for VerneMQ

It is possible to pass modifiers along with the “result”: “ok” return value of your webhook for VerneMQ.The official documentation of VerneMQ gives some examples for the syntax. changing the mountpointIt is also possible to change the mountpoint, however the client_id apparently has to be passed in as well!I have raised an issue with the [...]

By | Juni 9th, 2019|VerneMQ|Kommentare deaktiviert für Changing the mountpoint on auth_on_register webhook for VerneMQ

Maximimum length of credentials (username, password, clientid) in MQTT v3.1.1

The CONNECT packetThe MQTT CONNECT Control packet always contains a payload. It is the first packet, which the client must send to the server after the connection is established.It can only be sent once by the client, if a second CONNECT packet is sent, the server (broker) must process it as a protocol violation and [...]

By | Juni 9th, 2019|MQTT, VerneMQ|Kommentare deaktiviert für Maximimum length of credentials (username, password, clientid) in MQTT v3.1.1

Debugging VerneMQ connection / authentication problems for dual authentication with webhooks and vmq_diversity

TL;DRhttps://github.com/vernemq/vernemq/blob/master/apps/vmq_diversity/src/vmq_diversity_plugin.erlincludes a statement which will block authentication / authorization through any other channels if your Lua script returns “false”:will lead to:instead of trying other plugins, as you might have assumed!In order to avoid this problem, simply do not return anything from your Lua script, if you do not want to handle the message!DebuggingVerneMQ has a [...]

By | Juni 4th, 2019|VerneMQ|Kommentare deaktiviert für Debugging VerneMQ connection / authentication problems for dual authentication with webhooks and vmq_diversity