An FTP (File Transfer Protocol) server is a simple way of allowing users to exchange large files which are too big to send via email, and which can be accessed from virtually any web browser of FTP client. Multiple user accounts can be created on the same FTP server, and different permissions assigned to each user.

Install a base configuration of CentOS (http://www.centos.org), including the FTP and Web Server options. Strictly speaking the Web Server role is not required, but it is easier to add user accounts using Webmin than at the command line, which requires the web server role.