US Standard * s3.amazonaws.com(default) US West (Oregon) Region s3-us-west-2.amazonaws.com US West (Northern California) Region s3-us-west-1.amazonaws.com EU (Ireland) Region s3-eu-west-1.amazonaws.com Asia Pacific (Singapore) Region s3-ap-southeast-1.amazonaws.com Asia Pacific (Tokyo) Region s3-ap-northeast-1.amazonaws.com South America (Sao Paulo) Region s3-sa-east-1.amazonaws.com

Paperclip::Attachment.default_options.merge!( url: ':s3_domain_url', path: ':class/:attachment/:id/:style/:filename', storage: :s3, s3_credentials: Rails.configuration.aws, s3_permissions: :private, s3_protocol: 'https' )

http://hiphotos.s3.amazonaws.com/ads/photos/000/000/015/original/test_tree.jpg