FTP 202 Command Superfluous vs 215 System Type
Both FTP 202 (Command Superfluous) and 215 (System Type) 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, 215 means 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.
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
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.
เมื่อคุณพบเห็น
After issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
วิธีแก้ไข
No fix needed — use this information to adjust path separators and line endings for the server's OS type.
ความแตกต่างหลัก
FTP 202: The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
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.
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 215 when after issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
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 215 (System Type): No fix needed — use this information to adjust path separators and line endings for the server's OS type.