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.
説明
The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
このコードが表示される場合
When you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.
解決方法
No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue.
説明
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.
このコードが表示される場合
After issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
解決方法
No fix needed — use this information to adjust path separators and line endings for the server's OS type.
主な違い
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'.
どちらをいつ使うか
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.