Explicit FTP proxy topologies
You can configure a FortiGate unit to be an explicit FTP proxy server for FTP users. To use the explicit web proxy, FTP users must connect to and authenticate with the explicit FTP proxy before connecting to an FTP server.
Explicit FTP proxy topology
You can also configure reverse explicit FTP proxy. In this configuration, users on the Internet connect to the explicit web proxy before connecting to an FTP server installed behind a FortiGate unit.
Reverse explicit FTP proxy topology