Strange SFTP and PAM failure

[Jaime Kikpole]

I'm using a product called PowerSchool which is trying to send data to
the FreeBSD server over SFTP.  The service provide hosts it, so I
can't do any debugging on the far end.

What I know for sure is that any other program (FileZilla, command
line sftp, etc.) will connect, authenticate, and view files just fine.
This includes on-site and off-site traffic.  PowerSchool, on the other
hand, seems to have something go wrong during the authentication
steps.

When I tried to make one of these failed connections, I saw this in
/var/log/messages:

Aug 20 16:37:48 apps sshd[564]: error: PAM: authentication error for
<<username>> from <<IP of PowerSchool>>
Aug 20 16:37:48 apps sshd[564]: error: Received disconnect from <<IP
of PowerSchool>>: 3: com.jcraft.jsch.JSchException: Auth cancel
[preauth]

Any idea what might be causing this?


-- 
Jaime Kikpole
Network Administrator
Cairo-Durham Central School District

Technical Support:
help at cairodurham.org
go.cairodurham.org/techtips

-- 
This electronic message and any attachment(s) may contain confidential or 
legally privileged information protected by law from further disclosure and 
is intended only for the individual or entity identified above as the 
addressee. If you are not the addressee (or the employee or agency 
responsible to deliver it to the addressee), or if this message has been 
addressed to you in error, you are hereby notified that you may not copy, 
forward, disclose or use any part of this message or any attachment(s). 
Please notify the sender immediately by return email or telephone and 
permanently delete this message and attachment(s) from your system.