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Re: [mosquitto-dev] two-way communication
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Hello Roger,
The cliens are Raspberry Pi devices running Raspbian GNU/Linux 10 (buster) and Mosquitto 1.5.7
The server is a virtual machine running Ubuntu 20.04.4 (focal) where Mosquitto version is 1.6.9
I would like to proceed with an upgrade to version 2.0.15 before doing any time-consuming work.
I guess Raspbian needs your mosquitto-buster.list but the Ubuntu on the server didn’t upgrade even though I have run apt-add-repository and apt-get upgrade.
Ahmet Tekelioglu
+90 (530) 410 9807
> On 18 Aug 2022, at 01:11, Roger Light <roger@xxxxxxxxxx> wrote:
>
> Hi Ahmet,
>
> I haven't heard of anything like that, sorry. Do you have any more
> details of how exactly you are setting things up?
>
> Regards,
>
> Roger
>
>> On Wed, 17 Aug 2022 at 11:01, Ahmet Tekelioglu via mosquitto-dev
>> <mosquitto-dev@xxxxxxxxxxx> wrote:
>>
>> Hello,
>>
>> I am using mosquitto in an application that collects telemetry data form several dozen clients. I have already activated the MQTT/TLS parameters and selected relatively safe TLS parameters. However, partly out of curiosity, I am also implementing the Diffir-Hellman protocol for key exchange. The protocol itself works fine and produces the same key at both ends, the client and the server. It is possible to exchange keys many times and that part appears to work flawlessly.
>>
>> However, after the first key exchange, I find that the telemetry data arriving from the clients becomes erratic so that only one third is saved to the database. Before the Diffie-Hellman protocol, data transfer was always one-way, from the clients to the server. The trouble started when I began to send D-H responses to the client from the server. Any clues?
>>
>> Has anybody run into unexpected behaviour after two-way messaging?
>>
>> Ahmet Tekelioglu
>> +90 (530) 410 9807
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