FTP 215 System Type vs 451 Local Error
FTP 215 (System Type) is a 2xx Positive Completion response, while 451 (Local Error) is a 4xx Transient Negative response. 215 indicates that the NAME system type, where NAME is an official system name from the list in the Assigned Numbers document. Reports the operating system of the server. 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 NAME system type, where NAME is an official system name from the list in the Assigned Numbers document. Reports the operating system of the server.
When You See It
After issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
How to Fix
No fix needed — use this information to adjust path separators and line endings for the server's OS type.
Description
Requested action aborted: local error in processing. The server encountered an unexpected error while trying to complete the command.
When You See It
When the server has an internal issue like a disk I/O error, memory shortage, or filesystem problem during command processing.
How to Fix
Retry the command. If the error persists, contact the server administrator to check disk health, available memory, and server logs.
Key Differences
215 is a 2xx Positive Completion response, while 451 is a 4xx Transient Negative response.
FTP 215: The NAME system type, where NAME is an official system name from the list in the Assigned Numbers document. Reports the operating system of the server.
FTP 451: Requested action aborted: local error in processing. The server encountered an unexpected error while trying to complete the command.
You encounter 215 when after issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
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.
When to Use Which
For 215 (System Type): No fix needed — use this information to adjust path separators and line endings for the server's OS type. For 451 (Local Error): Retry the command. If the error persists, contact the server administrator to check disk health, available memory, and server logs.