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.
Description
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.
When You See It
Right before a file download or upload begins, confirming the file is accessible and the data channel is being opened.
How to Fix
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.
Description
System status or system help reply. The server provides information about its current status or available features.
When You See It
After issuing the STAT command without arguments, the server returns its system status and supported features.
How to Fix
No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state.
Key Differences
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.
When to Use Which
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.