"scponly" is an alternative 'shell' (of sorts) for system administrators who would like to provide access to remote users to both read and write local files without providing any remote execution priviledges. functionally, it is best described as a wrapper to the mostly trusted suite of ssh applications.

this package has, for security reasons, no support for rsync, unison or svn. if you want that, choose "scponly-full" instead.