FTP 220 Service Ready vs 226 Closing Data Connection
Both FTP 220 (Service Ready) and 226 (Closing Data Connection) belong to the 2xx Positive Completion category. 220 indicates that service ready for new user. This is the greeting message sent by the FTP server when a client first connects. Meanwhile, 226 means that closing data connection. The requested file action was successful and the data connection is being closed.
Описание
Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
Когда вы это видите
Immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
Как исправить
No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.
Описание
Closing data connection. The requested file action was successful and the data connection is being closed.
Когда вы это видите
After a file transfer, directory listing, or other data operation completes successfully.
Как исправить
No fix needed — the transfer completed successfully. The data connection is closed and a new one will be opened for the next transfer.
Ключевые различия
FTP 220: Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
FTP 226: Closing data connection. The requested file action was successful and the data connection is being closed.
You encounter 220 when immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
You encounter 226 when after a file transfer, directory listing, or other data operation completes successfully.
Когда что использовать
For 220 (Service Ready): No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate. For 226 (Closing Data Connection): No fix needed — the transfer completed successfully. The data connection is closed and a new one will be opened for the next transfer.