SFTP doesn't work from a specific client
gmx at ross.cx
Tue May 19 20:01:48 UTC 2015
Am .05.2015, 14:41 Uhr, schrieb Jaime Kikpole <jkikpole at 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: error: PAM: authentication error for
> <USERNAME> from <IP ADDRESS>
> May 19 08:24:56 its1 sshd: 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
> 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
Gives the verbosity level that is used when logging messages
sshd(8). The possible values are: QUIET, FATAL, ERROR, INFO,
VERBOSE, DEBUG, DEBUG1, DEBUG2, and DEBUG3. The default is
DEBUG and DEBUG1 are equivalent. DEBUG2 and DEBUG3 each
higher levels of debugging output. Logging with a DEBUG level
violates the privacy of users and is not recommended.
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