Any free server to upload files from paperclip

Do you know any free server to upload files with paperclip for a site
with low traffic? I'm afraid of using S3 because I see no protection to
lots of petitions attacks.

Hi there,

I am using amazon for some time and I am happy with the free services they offer

Have a look at http://aws.amazon.com/s3/

I hope it will help

Andrej