在 www.websamba.com 申请了个空间，用flashFXP上传时提示：
正在连接到 websamba.com/easeskill
已连接到 ftp05.websamba.com 端口 21
220 WebSamba FTP Server (Version 1.0) for Windows_NT.
USER easeskill
331 Password required for easeskill
PASS (hidden)
230 User easeskill logged in.
SYST
215 Windows_NT version 4.0
PWD
257 "" is current directory.
TYPE A
200 Type set to A.
PORT 211,149,240,190,11,219
200 PORT command successful.
LIST
502 Command "" not implemented.
150 ASCII data connection for list.
226 Transfer complete.

这是怎么回事啊？（已经取消PASV模式）