7b7756fd_s_File_Sharing_and_FTP_Hosting__Purpose
[Range] 6xx [Purpose] 
Protected Reply The RFC 2228 introduced the concept of protected replies to increase security over the FTP communications. The 6xx replies are Base64 encoded protected messages that serves as responses to secure commands. When properly decoded, these replies fall into the above categories.
SmartFile | Business File Sharing and FTP Hosting
Purpose