FTP 110 Restart Marker Reply vs 451 Local Error
FTP 110 (Restart Marker Reply) is a 1xx Positive Preliminary response, while 451 (Local Error) is a 4xx Transient Negative 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, 451 means that requested action aborted: local error in processing. The server encountered an unexpected error while trying to complete the command.
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.
Quand vous le voyez
During a resumed file transfer when the server confirms the restart position in the data stream.
Comment résoudre
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 action aborted: local error in processing. The server encountered an unexpected error while trying to complete the command.
Quand vous le voyez
When the server has an internal issue like a disk I/O error, memory shortage, or filesystem problem during command processing.
Comment résoudre
Retry the command. If the error persists, contact the server administrator to check disk health, available memory, and server logs.
Différences clés
110 is a 1xx Positive Preliminary response, while 451 is a 4xx Transient Negative 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 451: Requested action aborted: local error in processing. The server encountered an unexpected error while trying to complete the command.
You encounter 110 when during a resumed file transfer when the server confirms the restart position in the data stream.
You encounter 451 when when the server has an internal issue like a disk I/O error, memory shortage, or filesystem problem during command processing.
Quand utiliser lequel
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 451 (Local Error): Retry the command. If the error persists, contact the server administrator to check disk health, available memory, and server logs.