非root用户无法ftp连接服务器

bash-3.00$ ftp 10.0.9.x

Connected to 10.0.9.x
Connected to 10.0.9.x
220 dbfile1 FTP server (Version 4.2 Mon Dec 21 13:38:18 CST 2009) ready.
220 dbfile1 FTP server (Version 4.2 Mon Dec 21 13:38:18 CST 2009) ready.
ftp: get_auth_methods() failed 5
Permission denied
ftp: get_auth_methods() failed 5
Permission denied


客户端系统为aix5.3   10.0.9.x为是ftp服务器, 用aix自带的ftp, 没做任何配置的.  其它客户端通过ftp 10.0.9.x能正常连接收起