FTP 214 Help Message vs 221 Closing Control Connection
Both FTP 214 (Help Message) and 221 (Closing Control Connection) belong to the 2xx Positive Completion category. 214 indicates that help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command. Meanwhile, 221 means that service closing control connection. The server is logging out and closing the session in response to a QUIT command.
Описание
Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
Когда вы это видите
After issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
Как исправить
No fix needed — this is an informational response. Use it to discover which commands the server supports.
Описание
Service closing control connection. The server is logging out and closing the session in response to a QUIT command.
Когда вы это видите
After issuing the QUIT command to gracefully disconnect from the FTP server.
Как исправить
No fix needed — the session has ended normally. Reconnect with a new session if needed.
Ключевые различия
FTP 214: Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
FTP 221: Service closing control connection. The server is logging out and closing the session in response to a QUIT command.
You encounter 214 when after issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
You encounter 221 when after issuing the QUIT command to gracefully disconnect from the FTP server.
Когда что использовать
For 214 (Help Message): No fix needed — this is an informational response. Use it to discover which commands the server supports. For 221 (Closing Control Connection): No fix needed — the session has ended normally. Reconnect with a new session if needed.