[root@centos6 ~]# ftp localhost
Connected to localhost (127.0.0.1).
220 (vsFTPd 2.2.2)
Name (localhost:trainee): anonymous
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (127,0,0,1,70,196).
150 Here comes the directory listing.
drwxr-xr-x    3 0        0            4096 May 31 14:03 pub
226 Directory send OK.
ftp> cd pub
250 Directory successfully changed.
ftp> cd upload
250 Directory successfully changed.
ftp> put rndc.key
local: rndc.key remote: rndc.key
227 Entering Passive Mode (127,0,0,1,238,121).
150 Ok to send data.
226 Transfer complete.
77 bytes sent in 0,0349 secs (2,21 Kbytes/sec)
ftp> ls
227 Entering Passive Mode (127,0,0,1,230,251).
150 Here comes the directory listing.
-rw-------    1 14       50             77 May 31 14:09 rndc.key
226 Directory send OK.