NcFTPd general.cf file configuration
Don't forget to restart NcFTPd after modifying the general.cf file.
This option may be useful for SSH tunnelling applications. This option applies when the client's FTP session is originated from the loopback interface (example: IP address of 127.0.0.1), but the data connection is attempted to some other address other than the loopback. Normally, NcFTPd considers that scenario as a proxy connection, which is regulated by other options, but this option is available if you want to special-case this situation and leave other proxy protections intact.
Please do not ask for help about any such use of SSH, as we do not support it.