I had a working installation of scponly when I had Ubuntu 9.10, and then I upgraded to 10.04, as per the advice here:
However, it appears that scponly is broken in Ubuntu 10.04:
This functionality is absolutely mission critical, and its lack is causing us serious problems. How can I get this functionality back?
EDIT: I tried the suggestions here:
But all my previous users don't work anymore either. I really need this to work...