I need to create a directory on a Linux server where users can "submit" files, similar to the incoming directory on an ftp server. (Where they would not be viewable after submission.)
Specifically, this is Fedora 20, though I'm hoping for a solution that will work in general.
Obviously, I can set up vsftp locally and actually ftp to localhost, but it seems unnecessary.
Basically, I want a user to be able to copy a file into this directory, but not view it afterwards. (Although, if they could append to it with >>, that would be nice)
Is there any combination of groups, chmod, umask, and setfacl that will allow this?