FTP 211 System Status vs 225 Data Connection Open
Both FTP 211 (System Status) and 225 (Data Connection Open) belong to the 2xx Positive Completion category. 211 indicates that system status or system help reply. The server provides information about its current status or available features. 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.
Описание
System status or system help reply. The server provides information about its current status or available features.
Когда вы это видите
After issuing the STAT command without arguments, the server returns its system status and supported features.
Как исправить
No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state.
Описание
Data connection open; no transfer in progress. The data channel is established and ready but no file transfer has started yet.
Когда вы это видите
When the data connection is established but idle, waiting for a transfer command to begin sending or receiving data.
Как исправить
No fix needed — the data connection is ready. Issue a RETR, STOR, or LIST command to start using it.
Ключевые различия
FTP 211: System status or system help reply. The server provides information about its current status or available features.
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 211 when after issuing the STAT command without arguments, the server returns its system status and supported features.
You encounter 225 when when the data connection is established but idle, waiting for a transfer command to begin sending or receiving data.
Когда что использовать
For 211 (System Status): No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state. For 225 (Data Connection Open): No fix needed — the data connection is ready. Issue a RETR, STOR, or LIST command to start using it.