OpenSSH server doesn't log client disconnect without SSH_MSG_DISCONNECT

[Damien Miller]

On Wed, 29 May 2024, Opty wrote:

> On Mon, May 27, 2024 at 4:18 AM Damien Miller <djm at mindrot.org> wrote:
> > Yeah, you're adding a new thing that will be logged. IMO you should
> > try to figure out why the "Connection closed" message that is present
> > in the debug log you sent is not making to to your syslog.
> 
> If I change LogLevel in /etc/ssh/sshd_config from default INFO to
> VERBOSE then I see 'Connection closed' message but also others which I
> don't want.
> 
> I also tried 'LogVerbose packet.c:sshpkt_vfatal():*' and even
> 'LogVerbose *:sshpkt_vfatal():*' (both with 'LogLevel INFO') but none
> worked.

What version OpenSSH are you using? Are you building from source or are
you using a vendor/distribution packaging? It's possible that someone
else has modified the log level, but in the version we ship these are
all at loglevel INFO