openssh unix dev - May 2024 - OpenSSH server doesn't log client disconnect without SSH_MSG_DISCONNECT

Hello,

can anyone confirm that OpenSSH server doesn't log client disconnect
without SSH_MSG_DISCONNECT?

PuTTY stopped sending it long time ago [1] and I wonder if any client
must or at least should do that like OpenSSH client does.

I have disabled e-mail delivery so Cc me please.

Regards,
Opty

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[1]
https://git.tartarus.org/?p=simon/putty.git;a=blob;f=ssh/connection2.c;hb=b6ef4f18d51bf6ea5467814a7de586472aebc8fe#l1264

On Tue, 21 May 2024, Opty wrote:
> Hello,
> 
> can anyone confirm that OpenSSH server doesn't log client disconnect
> without SSH_MSG_DISCONNECT?
OpenSSH logs the disconnection regardless of whether the client sends
SSH_MSG_DISCONNECT or just drops the connection.

A little more information may be logged from the disconnect packet
if it was sent, but there should always be a "Connection closed by
..."
message regardless.

-d