Bug#1077799: openssh-server: cannot login anymore: error "kex_exchange_identification: read: Connection reset by peer"

[Andrea Zagli <azagli@libero.it>]

Colin Watson <cjwatson@debian.org> writes:

> (CCing the bug report again so that this is archived)
>
> On Fri, Aug 02, 2024 at 04:30:35PM +0200, Andrea Zagli wrote:
>> i think it's disabled
>> 
>> ○ ssh.socket - OpenBSD Secure Shell server socket
>>      Loaded: loaded (/usr/lib/systemd/system/ssh.socket; disabled; preset: enabled)
>>      Active: inactive (dead)
>>    Triggers: ● ssh.service
>>      Listen: [::]:22 (Stream)
>> 
>> 
>> the sshd service starts without problems
>> 
>> i tried with a clean sshd_config file, but same problem
>> 
>> i downgraded openssh to 9.7 and it works
>
> In that case I need all the ssh-related log entries you can give me -
> "journalctl -u ssh.service --lines=1000", /var/log/auth.log, and so on.


the only log produced 

ago 02 16:30:11 deimos sshd[27821]: Received signal 15; terminating.
ago 02 16:30:11 deimos systemd[1]: Stopping ssh.service - OpenBSD Secure Shell server...
ago 02 16:30:11 deimos systemd[1]: ssh.service: Deactivated successfully.
ago 02 16:30:11 deimos systemd[1]: Stopped ssh.service - OpenBSD Secure Shell server.
ago 02 16:30:25 deimos systemd[1]: Starting ssh.service - OpenBSD Secure Shell server...
ago 02 16:30:25 deimos sshd[32054]: Server listening on 0.0.0.0 port 22.
ago 02 16:30:25 deimos sshd[32054]: Server listening on :: port 22.
ago 02 16:30:25 deimos systemd[1]: Started ssh.service - OpenBSD Secure Shell server.
ago 02 16:30:29 deimos sshd-session[32063]: refused connect from 10.0.0.99 (10.0.0.99)


last line also on auth.log