The GAdmin suite of tools includes graphical user interfaces for configuring many different Linux servers, including OpenVPN, HTTPd, Squid, Samba, Rsync, SSHd and more. They also provide a graphical user interface for the ProFTPD FTP server.
GAdmin: ProFTPD provides integrated configuration file backup and restoration so you can play with ProFTPD's configuration with confidence. Like the ProFTPD server itself, GAdmin provides access to more configuration options than PureAdmin does. Name your FTP server, change its ports, maximum connections, transfer mode, idle timeout, download and upload speeds and more.
Like PureAdmin, GAdmin provides a comprehensive user management tool. GAdmin also displays currently connected users and connections, allowing you to cancel their transfers, disconnect the users or ban them from your FTP server.
Get GAdmin: ProFTPD from your Linux distribution's repositories or its official website.