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

By Maximilian Batz | 2019-06-11

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.

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Changing the mountpoint on auth_on_register webhook for VerneMQ

By Maximilian Batz | 2019-06-09

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 mountpoint It is also possible to change the mountpoint, however the client_id apparently has to be passed in as well! I have raised an…

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

By Maximilian Batz | 2019-06-04

TL;DR https://github.com/vernemq/vernemq/blob/master/apps/vmq_diversity/src/vmq_diversity_plugin.erl includes 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…

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