I'd like to configure one of my servers to allow an external entity to 
SFTP into the box to upload files, but I want to keep them in their 
homedir. I would like the same basic set-up you get with plain FTP when 
using the ftpconfig command to set up a guest user, but with SFTP. Not 
entirely sure how to do this without running all SSH sessions in the 
chroot. Any pointers?

Thanks,
Mark

Take a look at the chroot-ssh project (http://chrootssh.sf.net).  This 
should help you out.  Also checkout the chroot sshd/sftp instructions as 
these compliment the chroot-ssh patch at 
http://www.brandonhutchinson.com/chroot_ssh.html

Regards,

Ryan

> I'd like to configure one of my servers to allow an external entity to SFTP 
> into the box to upload files, but I want to keep them in their homedir.