Large file upload and Dreamhost

I want to allow uploading large files (50 mb+) through a web form with
rails.

With a normal http post (of course), it doesn’t work.

So I tried an FTP upload, but even then, it doesn’t work.

Should working with threads or some kind of progress indicator (and
keeping querying the server) be of any help?

Any input is welcome.

Geoff

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