FONC 0.3 Beta

FONC,otherwise known as FTP Over Normal Connections allows both active and passive FTP transfers via normal port connections.

FONC is a tool that normalizes the connections so that SSH tunnels can secure both control and data transfers in  active and passive modes.

The FONC server acts like a local FTP client to the FTP server. The FONC client acts like a local FTP server for the FTP client. Both client and server can connect to ports opened on the FTP counterpart and open ports for the FTP counterpart to connect to.

FONC knows when to open a port and when to connect to a port by capturing PORT and
PASV (including extended versions) commands on the control connection. It will then modify the command so that the FTP counterpart will connect to FONC instead.