FTP 202 Command Superfluous vs 250 File Action OK
Both FTP 202 (Command Superfluous) and 250 (File Action OK) belong to the 2xx Positive Completion category. 202 indicates that the command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect. Meanwhile, 250 means that requested file action okay, completed. The operation on the file or directory was successful.
คำอธิบาย
The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
เมื่อคุณพบเห็น
When you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.
วิธีแก้ไข
No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue.
คำอธิบาย
Requested file action okay, completed. The operation on the file or directory was successful.
เมื่อคุณพบเห็น
After successfully changing directories (CWD), deleting a file (DELE), or renaming a file (RNTO).
วิธีแก้ไข
No fix needed — the file operation completed successfully.
ความแตกต่างหลัก
FTP 202: The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
FTP 250: Requested file action okay, completed. The operation on the file or directory was successful.
You encounter 202 when when you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.
You encounter 250 when after successfully changing directories (CWD), deleting a file (DELE), or renaming a file (RNTO).
ควรใช้อันไหนเมื่อไร
For 202 (Command Superfluous): No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue. For 250 (File Action OK): No fix needed — the file operation completed successfully.