Create or edit the SOCKS configuration file or dataset you have defined in the FTP configuration (for example, /etc/socks.conf).

The following configuration secures connections to hosts 192.168.10.5 and 192.168.10.10, and to class C network 192.168.20.0. Connections to other addresses will be direct:

sockd @=127.0.0.1 192.168.10.5 255.255.255.255 
sockd @=127.0.0.1 192.168.10.10 255.255.255.255 
sockd @=127.0.0.1 192.168.20.0 255.255.255.0
direct 0.0.0.0 0.0.0.0

The following configuration assumes that the loopback address for transparent FTP tunneling proxy was changed. It makes all FTP connections use SOCKS on the new loopback address:

sockd @=127.0.0.2 0.0.0.0 0.0.0.0