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From:
David Gwynne <david@gwynne.id.au>
Subject:
Re: etc/services: add ports for mqtt
To:
Hugo Osvaldo Barrera <hugo@whynothugo.nl>
Cc:
OpenBSD Tech <tech@openbsd.org>
Date:
Sat, 26 Apr 2025 14:37:44 +1000

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> On 24 Apr 2025, at 08:14, Hugo Osvaldo Barrera <hugo@whynothugo.nl> wrote:
> 
> On 2025-04-23 20:21, Stuart Henderson wrote:
>> On 2025/04/23 15:29, Hugo Osvaldo Barrera wrote:
>>> Port 1883 is used for plain-text mqtt and 8883 is used for TLS+mqtt.
>>> See: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=mqtt
>> 
>> Many IANA registrations are for both TCP and UDP although nany
>> protocols never or rarely run over both. We typically only list a
>> port/protocol if in very common usage.
>> 
>> I agree with adding MQTT over TCP, this is a common protocol and
>> reserving this port to prevent it being used in the dynamic range, which
>> is a side-effect of listing in services(5), makes sense.
>> 
>> I think we should skip UDP.
> 
> Attaching an updated diff.

im ok with this too. i'll commit it when i get a minute.

> -- 
> Hugo
> <mqtt.diff>