On Tue, Oct 05, 2010 at 07:40:26PM -0700, Russ Allbery <[email protected]> wrote:
> > this is somewhat serious as no message whatsoever gets logged for
> > semi-successfull log-ins.
>
> Er, that's strange. What PAM modules are you seeing this with? I always
whatever comes with debian as default.
> use sshd with PrivilegeSeparation enabled, and so far as I can remember my
> PAM modules have never had any trouble logging output to syslog, including
> full debug output for every step in the process. Maybe something new
> changed, but I would have thought I'd notice.
What luck that I found out how to reproduce it a while later: remove the
/etc/shadow entry for the user, and you get connection closed but no log
messages whatsoever. strace shows that sshd tried to open /dev/log, but
gets ENOENT, which makes sense in the context.
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