Date: Tue, 19 May 2015 21:39:39 +0200 From: "Michael Ross" <gmx@ross.cx> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>, "Jaime Kikpole" <jkikpole@cairodurham.org> Subject: Re: SFTP doesn't work from a specific client Message-ID: <op.xywd8ic3g7njmm@workstation> In-Reply-To: <CA%2Bsg5RSrapEwdesz2T7hgDttbQ2qcM5LMG997=hUCn=OsUpedw@mail.gmail.com> References: <CA%2Bsg5RSrapEwdesz2T7hgDttbQ2qcM5LMG997=hUCn=OsUpedw@mail.gmail.com>
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Am .05.2015, 14:41 Uhr, schrieb Jaime Kikpole <jkikpole@cairodurham.org>:
> I have a system that pushes out data files via SFTP to a FreeBSD
> system each night. I'm in the process of replacing that FreeBSD
> system (its really old & still runs 8.x.) My issue is that the data
> source can't connect via SFTP, but other systems can. When it tries,
> this appears in /var/log/auth.log:
>
> May 19 08:24:56 its1 sshd[38792]: error: PAM: authentication error for
> <USERNAME> from <IP ADDRESS>
> May 19 08:24:56 its1 sshd[38792]: error: Received disconnect from <IP
> ADDRESS>: 3: com.jcraft.jsch.JSchException: Auth cancel [preauth]
>
> When I test it from the system that pushes out the data, it prompts me
> to accept an SSH key and then tells me that it failed to connect.
> Unfortunately, its a GUI and has basically no diagnostic data to work
> from.
>
> I get the same results when I try to make the data source do SFTP
> conenctions to other systems, including some that are 10.1-RELEASE-p9
> and some that are 10.1-RELEASE-p10. The weird thing is that I can use
> command line SFTP from any other location (including other FreeBSD
> systems and even a MacOS 10.9 system at home) to connect to these
> FreeBSD systems and everything works. I can connect, authenticate,
> and even ls and cd around the file system.
>
> This feels like the data sending software is expecting something that
> isn't setup on the FreeBSD 10.1 systems, but is setup on the FreeBSD
> 8.x system. I just don't know what.
>
> Any thoughts on how to diagnose this?
>
>
Turn up logging verbosity in /etc/ssh/sshd_config
LogLevel
Gives the verbosity level that is used when logging messages
from
sshd(8). The possible values are: QUIET, FATAL, ERROR, INFO,
VERBOSE, DEBUG, DEBUG1, DEBUG2, and DEBUG3. The default is
INFO.
DEBUG and DEBUG1 are equivalent. DEBUG2 and DEBUG3 each
specify
higher levels of debugging output. Logging with a DEBUG level
violates the privacy of users and is not recommended.
Regards,
Michael
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