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+[From the README:] "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 "tried and true" ssh
+suite of applications.
+
+scponly validates remote requests by examining the third argument passed to the
+shell upon login. (The first argument is the shell itself, and the second is
+-c.) The only commands allowed are "scp" (for ssh1), "sftp-server" (for ssh2")
+and "ls". Arguments to these commands are passed along unmolested.
+
+WWW: http://www.sublimation.org/scponly/
+
+---Ken McGlothlen (mcglk@artlogix.com)