FTP 215 System Type vs 225 Data Connection Open
Both FTP 215 (System Type) and 225 (Data Connection Open) belong to the 2xx Positive Completion category. 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. Meanwhile, 225 means that data connection open; no transfer in progress. The data channel is established and ready but no file transfer has started yet.
Descripción
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.
Cuándo lo verás
After issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
Cómo solucionarlo
No fix needed — use this information to adjust path separators and line endings for the server's OS type.
Descripción
Data connection open; no transfer in progress. The data channel is established and ready but no file transfer has started yet.
Cuándo lo verás
When the data connection is established but idle, waiting for a transfer command to begin sending or receiving data.
Cómo solucionarlo
No fix needed — the data connection is ready. Issue a RETR, STOR, or LIST command to start using it.
Diferencias clave
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 225: Data connection open; no transfer in progress. The data channel is established and ready but no file transfer has started yet.
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 225 when when the data connection is established but idle, waiting for a transfer command to begin sending or receiving data.
Cuándo usar cada uno
For 215 (System Type): No fix needed — use this information to adjust path separators and line endings for the server's OS type. For 225 (Data Connection Open): No fix needed — the data connection is ready. Issue a RETR, STOR, or LIST command to start using it.