FTP 200 Command OK vs 225 Data Connection Open
Both FTP 200 (Command OK) and 225 (Data Connection Open) belong to the 2xx Positive Completion category. 200 indicates that the command has been successfully executed. This is a general acknowledgment that the command was understood and carried out. 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 command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
Cuándo lo verás
After issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
Cómo solucionarlo
No fix needed — the command succeeded. This is the standard positive response for commands that don't return data.
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 200: The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
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 200 when after issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
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 200 (Command OK): No fix needed — the command succeeded. This is the standard positive response for commands that don't return data. For 225 (Data Connection Open): No fix needed — the data connection is ready. Issue a RETR, STOR, or LIST command to start using it.