[ALUG] using scponly shell

[samwise]

Hi,

Hopefully, not too off-topic but I'm having trouble setting up a user
account on a FreeBSD server (an OS I'm not greatly comfortably with
yet), to use the scponly [http://www.sublimation.org/scponly/wiki/]
shell.

I basically want to allow the account SFTP access, but not have an
interactive login shell - so scponly looks like what I'm after.

I've set the user's login shell to be /usr/ports/shells/scponly and
also added the shell to /etc/shells.

When I try to SFTP into the server with the user, though, I'm getting
the "Received message too long 1416128883" error.  Googling hasn't
really helped much.

Anyone got any suggestions?

TIA,

Peter.