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+Photon
+=========
+
+Photon is an image acceleration and modification service (for Jetpack-connected WordPress sites). You can run your own Photon-based CDN for any other (non-Wordpress sites) by using the open source Photon code to grab all images from your site and caching them with Varnish.
+
+Quick & Dirty Instructions:
+
+  - Create a new Apache vHost (e.g. ServerName cdn.example.com)
+  - Make that vHost also respond on a wildcard subdomain (ServerAlias cdn*.example.com)
+  - Configure Apache to use port 81 
+  - Configure Varnish to use port 80 
+  - Use the included Varnish VCL ('examples/varnish.vcl') for caching all images for 1 week if the request was made to one of the CDN hosts
+  - Put all files into the DocumentRoot of the vHost you created
+  - Make sure mod_rewrite is enabled (a2enmod rewrite) and that you are allowed to use the .htaccess file in the DocumentRoot of the vHost (AllowOverride All)
+
+If that's all running, take the address of some image on your site (e.g. http://www.example.com/img/photo.jpg) and prefix it with one of your CDN hosts (e.g. http://cdn0.example.com/www.example.com/img/photo.jpg). 
+
+If everything's working fine, your should not only get the image, but also see in the HTTP headers that Varnish has cached the image (X-Cache: HIT) and won't ask the origin for it again (for a week).
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