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.
Mô tả
Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
Khi bạn thấy mã này
Immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
Cách khắc phục
No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.
Mô tả
Closing data connection. The requested file action was successful and the data connection is being closed.
Khi bạn thấy mã này
After a file transfer, directory listing, or other data operation completes successfully.
Cách khắc phục
No fix needed — the transfer completed successfully. The data connection is closed and a new one will be opened for the next transfer.
Sự khác biệt chính
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.
Khi nào dùng cái nào
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.