On Wed, Sep 28, 2011 at 7:10 AM, David Walker <[email protected]>wrote:

> Hi Stefan.
>
> On 28/09/2011, Stefan Johnson <[email protected]> wrote:
> > Please disregard my last... gmail sent the email before I was finished
> > composing it.
>
> I figured as much.
>
> > Using false for your shell is okay for ftp.  It is not for ssh/sftp.
>
> I kind of expect that SSH (the shell) either passes commands directly
> to the sftp-server or the sftp-server is enough of a shell to take
> over (in the same way that ftpd has enough vocabulary) ...
> In that sense it wouldn't seem useful to have another shell in play.
>

SSH isn't a shell.  It is a protocol.  In much the same sense as FTP is not
a shell but a protocol.
FTP is designed with file transfers in mind, and therefore handles file I/O
without the need of
a shell process to set up an environment, etc.  SSH (and by extension, SFTP)
need a valid shell
to do that for you.  I've seen an implementation of SSH that allows for
/bin/false for sftp, but unless
something changed and I missed it, OpenSSH does not.



>
> I'm not saying you're wrong but unless I get something definitive
> (e.g. a man page) I'll test it anyway.
>
> >  Match User sftpuser
> >        X11Forwarding no
> >        AllowTcpForwarding no
> >        ForceCommand internal-sftp
> >        ChrootDirectory /home/sftpuser
> >
> > Where the user is named sftpuser and the home directory for the user is
> > /home/sftpuser.
>
> Yeah I got that bit worked out and I've got the forwarding commands
> globally.
>

If you intend to use logging, check the tail end of the man page for
sftp-server as well.
There is a blurb about needing to set something up for syslog in there.

Good luck!

Stefan Johnson

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