214, 215, 220, 221 FTP Response Codes

A 214 code is used in response to the HELP command to provide information on how to use the server or the meaning of a particular non-standard command. This response is useful only to the human user and commonly contains a list of commands recognized by the server.

Example response

214 Help message.

Possible command

• HELP

A 215 code is given in response to the SYST command. The response should contain an official system name from the list in the Assigned Numbers document.

Example response

215 NAME system type.

Possible command

• SYST

A 220 code is sent in response to a new user connecting to the FTP server to indicate that the server is ready for the new client. It can also be sent in response to a REIN command, which is meant to reset the connection to the moment the client first connected to the server.

Example response

220 Serv-U FTP Server v6.0 for WinSock ready…

Possible command

• REIN

A 221 code is sent over the control connection in response to the client’s QUIT command. It is sent immediately before the control connection is closed by the server.

Example response

221 Goodbye!

Possible command

• QUIT

• 110, 120, 125, 150 FTP response codes
• 202, 211, 212, 213 FTP response codes
• 225, 226, 227, 230 FTP response codes
• 232, 234, 250, 253, 257 FTP response codes
• 331, 332, 334, 336, 350 FTP response codes
• 401, 421, 425, 426 FTP response codes
• 431, 450, 451, 452 FTP response codes
• 500, 501, 502, 503, 504 FTP response codes
• 530, 532, 533, 534, 535, FTP response codes
• 536, 550, 551, 552, 553 FTP response codes