Am 11.08.21 um 23:49 schrieb Peter Saint-Andre:
On 8/11/21 3:35 PM, Kim Alvefur wrote:
On Wed, Aug 11, 2021 at 02:25:56PM -0600, Peter Saint-Andre wrote:
Too bad we didn't stick to our guns in 2003 and insist on two ports
instead of one, but STARTTLS was the recommended approach back then...
We were always at war with STARTTLS?
We would have preferred to keep using port 5223 for TLS-only, but at
that time (2003/2004) IETF/IESG policy was "don't use so many ports,
STARTTLS makes it so that you only need one".
ah, one port is enough. But I do wonder if the old technique from
https://github.com/mawis/jabberd/blob/8c99ba9d56574044770c7513acd11c9072488203/jadc2s/clients.cc#L1289-L1301
(18 years...) is documented in some IETF document.
There is
https://datatracker.ietf.org/doc/html/rfc5764#section-5.1.2
but it only applies to DTLS.
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