FTP 110 Restart Marker Reply vs 250 File Action OK
FTP 110 (Restart Marker Reply) is a 1xx Positive Preliminary response, while 250 (File Action OK) is a 2xx Positive Completion response. 110 indicates that the server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted. In contrast, 250 means that requested file action okay, completed. The operation on the file or directory was successful.
Description
The server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted.
When You See It
During a resumed file transfer when the server confirms the restart position in the data stream.
How to Fix
No fix needed — this is a normal response during transfer recovery. If restarts keep failing, verify the marker format matches what your client expects.
Description
Requested file action okay, completed. The operation on the file or directory was successful.
When You See It
After successfully changing directories (CWD), deleting a file (DELE), or renaming a file (RNTO).
How to Fix
No fix needed — the file operation completed successfully.
Key Differences
110 is a 1xx Positive Preliminary response, while 250 is a 2xx Positive Completion response.
FTP 110: The server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted.
FTP 250: Requested file action okay, completed. The operation on the file or directory was successful.
You encounter 110 when during a resumed file transfer when the server confirms the restart position in the data stream.
You encounter 250 when after successfully changing directories (CWD), deleting a file (DELE), or renaming a file (RNTO).
When to Use Which
For 110 (Restart Marker Reply): No fix needed — this is a normal response during transfer recovery. If restarts keep failing, verify the marker format matches what your client expects. For 250 (File Action OK): No fix needed — the file operation completed successfully.