I am struggling to understand how to give different users different permissions on a folder on an Linux FTP server. I created a folder, a group and a user, lets say the folder is China, the group is China and the user is China. China must only have read access to this folder and User1 must have RWX. Have I already messed up by doing this on China's home directory...can I change their permissions on this to read-only? Many thanks.