Hello everyone! I'm having some trouble setting up proftpd and after much searching for answers, I've run out of things to try. I'm on Debian 7.5. Here is what I have working so far...

The initial proftpd.conf works fine. With this setup I can log in with my Debian username and pass and access all the folders of my Debian installation. I can also upload and download.

Here is what I would like to setup...

I need a central folder that multiple users can log into. Each user will have their own unique username and password, but they all access the same folder. They should have permission to upload and download freely to that folder, but should not be able to navigate outside of this folder.

I can post whatever files you need. Thank you for helping in advance!