Come informazione aggiuntiva vi riporto cosa mi dice quando mi connetto al server ftp://ftp.dante.de tramite FileZilla (il mio client FTP):
Status: Connecting to http://ftp.dante.de …
Status: Connected with http://ftp.dante.de. Waiting for welcome message…
Response: 220 ProFTPD 1.2.10 Server (CTAN) [80.237.210.73]
Command: USER anonymous
Response: 331 Anonymous login ok, send your complete email address as your password.
Command: PASS *****
Response: 230 Anonymous access granted, restrictions apply.
Command: SYST
Response: 215 UNIX Type: L8
Command: FEAT
Response: 211-Features:
Response: 211-MDTM
Response: 211-REST STREAM
Response: 211-SIZE
Response: 211 End
Status: Connected
Status: Retrieving directory listing…
Command: PWD
Response: 257 “/” is current directory.
Command: TYPE A
Response: 200 Type set to A
Command: PASV
Response: 227 Entering Passive Mode (80,237,210,73,149,243).
Command: LIST
Error: Could not retrieve directory listing
Status: Disconnected from server