Proftpd 指定 passive ports

#/usr/local/etc/proftpd.conf

# Restrict the range of ports from which the server will
#select when sent the PASV command from a client.
#Use IANA-registered ephemeral port range of
#49260-49360

PassivePorts 49260 49360


另外，要記得在防火牆開允許
#/etc/rc.firewall

#passive ftp ports
/sbin/ipfw add allow all from any to 140.120.31.205 49260-49360