500 Illegal PORT command.

[Roman Bobal]

Zdravim, pouzivam ProFTPd server a prohlaseni jakehokoliv uzivatele na tento
FTP server mi to hlasi:
500 Illegal PORT command.
425 Can't build data connection: Connection refused

z localhost je to o.k., asi neco s nastavenim firewallu, ale nevim co ...
mam tam:
-A input -s 0/0 -d 0/0 21 -p tcp -y -j ACCEPT
-A input -s 0/0 -d 0/0 20 -p tcp -y -j ACCEPT

diky za radu ...
RB