This add-on is outdated.
You can continue using it, but for new users we recommend to consider installing File Uploader 2 plugin.
Rehost File
CKEditor add-on

Overview

CKEditor Rehost File solves the problem of accessibility remote files for you web site visitors.

For example you want to have a link to some document, archive, spreadsheet or something about it placed on another web site. Your site visitors may have a troubles because nobody can guarentee that these files will be available at any time. External site may became down or its webmaster can block traffic from your site.

The solution is simple: to rehose files: upload them from external site to your own one. CKEditor Rehost File lets you to do single or bulk rehost in a couple of clicks.

PHP and ASP.NET compatible.

CKEditor Rehost File overview screenshot