FTP 125 Data Connection Open vs 215 System Type
FTP 125 (Data Connection Open) is a 1xx Positive Preliminary response, while 215 (System Type) is a 2xx Positive Completion response. 125 indicates that the data connection is already open and the transfer is beginning. No need to open a new data connection. In contrast, 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.
Описание
The data connection is already open and the transfer is beginning. No need to open a new data connection.
Когда вы это видите
When the server reuses an existing data connection for a file transfer instead of opening a new one.
Как исправить
No fix needed — the transfer is starting immediately. Your client should begin reading or writing data on the existing connection.
Описание
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.
Когда вы это видите
After issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
Как исправить
No fix needed — use this information to adjust path separators and line endings for the server's OS type.
Ключевые различия
125 is a 1xx Positive Preliminary response, while 215 is a 2xx Positive Completion response.
FTP 125: The data connection is already open and the transfer is beginning. No need to open a new data connection.
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 125 when when the server reuses an existing data connection for a file transfer instead of opening a new one.
You encounter 215 when after issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
Когда что использовать
For 125 (Data Connection Open): No fix needed — the transfer is starting immediately. Your client should begin reading or writing data on the existing connection. For 215 (System Type): No fix needed — use this information to adjust path separators and line endings for the server's OS type.