$ ftp -d pvr
Connected to pvr.homenet.
220 Welcome to connection.
---> AUTH GSSAPI
500 Syntax error, command unrecognized.
---> AUTH KERBEROS_V4
500 Syntax error, command unrecognized.
KERBEROS_V4 rejected as an authentication type
Name (pvr:xyz321): humaxftp
---> USER humaxftp
331 Password required for humaxftp.
Password:
---> PASS XXXX
230 User logged in, proceed.
---> SYST
215 UNIX system type.
Remote system type is UNIX.
ftp> cd /mod/tmp
---> CWD /mod/tmp
250 File action is successful. Proceed.
ftp> mkdir z
---> MKD z
257 Directory (z) created.
ftp> rmdir z
---> RMD z
250 File action is successful. Proceed.
ftp> quit
---> QUIT
221 Bye bye~