FTP 150 File Status OK vs 211 System Status
FTP 150 (File Status OK) is a 1xx Positive Preliminary response, while 211 (System Status) is a 2xx Positive Completion response. 150 indicates that the file status is okay and the server is about to open the data connection for the transfer. This is the normal precursor to a file transfer. In contrast, 211 means that system status or system help reply. The server provides information about its current status or available features.
説明
The file status is okay and the server is about to open the data connection for the transfer. This is the normal precursor to a file transfer.
このコードが表示される場合
Right before a file download or upload begins, confirming the file is accessible and the data channel is being opened.
解決方法
No fix needed — this means the transfer is about to start. If the transfer stalls after this reply, check firewall rules blocking the data connection.
説明
System status or system help reply. The server provides information about its current status or available features.
このコードが表示される場合
After issuing the STAT command without arguments, the server returns its system status and supported features.
解決方法
No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state.
主な違い
150 is a 1xx Positive Preliminary response, while 211 is a 2xx Positive Completion response.
FTP 150: The file status is okay and the server is about to open the data connection for the transfer. This is the normal precursor to a file transfer.
FTP 211: System status or system help reply. The server provides information about its current status or available features.
You encounter 150 when right before a file download or upload begins, confirming the file is accessible and the data channel is being opened.
You encounter 211 when after issuing the STAT command without arguments, the server returns its system status and supported features.
どちらをいつ使うか
For 150 (File Status OK): No fix needed — this means the transfer is about to start. If the transfer stalls after this reply, check firewall rules blocking the data connection. For 211 (System Status): No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state.