FTP 212 Directory Status vs 425 Can't Open Data Connection
FTP 212 (Directory Status) is a 2xx Positive Completion response, while 425 (Can't Open Data Connection) is a 4xx Transient Negative response. 212 indicates that directory status reply. The server provides information about the current directory or a specified directory. In contrast, 425 means that can't open data connection. The server was unable to establish the data channel needed for the file transfer.
Beschreibung
Directory status reply. The server provides information about the current directory or a specified directory.
Wann Sie es sehen
After issuing the STAT command on a directory, the server returns the directory listing or status information.
Wie man es behebt
No fix needed — this is an informational response showing directory contents or status.
Beschreibung
Can't open data connection. The server was unable to establish the data channel needed for the file transfer.
Wann Sie es sehen
When a firewall or NAT is blocking the data connection, or the client failed to connect to the server's passive port.
Wie man es behebt
Switch between active (PORT) and passive (PASV) modes. Check that your firewall allows the FTP data port range and that NAT is configured correctly.
Wesentliche Unterschiede
212 is a 2xx Positive Completion response, while 425 is a 4xx Transient Negative response.
FTP 212: Directory status reply. The server provides information about the current directory or a specified directory.
FTP 425: Can't open data connection. The server was unable to establish the data channel needed for the file transfer.
You encounter 212 when after issuing the STAT command on a directory, the server returns the directory listing or status information.
You encounter 425 when when a firewall or NAT is blocking the data connection, or the client failed to connect to the server's passive port.
Wann welchen verwenden
For 212 (Directory Status): No fix needed — this is an informational response showing directory contents or status. For 425 (Can't Open Data Connection): Switch between active (PORT) and passive (PASV) modes. Check that your firewall allows the FTP data port range and that NAT is configured correctly.