On Fri, Jul 14, 2017 at 10:02:05AM +0100, Pete Biggs wrote:
the goal is, that the FTP server is a Dropbox for Alice, so she can upload files and folders and is not able to see the uploaded files (drwx-wx--- for the main older).
There is a much more fine-grained ACL system in Linux which sits on top of the standard file permissions. Have a look at, for instance,
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/htm...
or 'man acl'
This, though old, also gives a very good explanation of ACLs. http://tech.trailmax.info/wp-content/uploads/2010/10/default_ACL.pdf