FTP

FTP 212 Directory Status vs 229 Entering Extended Passive Mode

Both FTP 212 (Directory Status) and 229 (Entering Extended Passive Mode) belong to the 2xx Positive Completion category. 212 indicates that directory status reply. The server provides information about the current directory or a specified directory. Meanwhile, 229 means that entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.

คำอธิบาย

Directory status reply. The server provides information about the current directory or a specified directory.

เมื่อคุณพบเห็น

After issuing the STAT command on a directory, the server returns the directory listing or status information.

วิธีแก้ไข

No fix needed — this is an informational response showing directory contents or status.

คำอธิบาย

Entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.

เมื่อคุณพบเห็น

After issuing the EPSV command. The server responds with a port number in the format (|||port|) for the client to connect to.

วิธีแก้ไข

No fix needed — connect to the server's control IP on the provided port. If it fails, try falling back to PASV (227) or check firewall rules.

ความแตกต่างหลัก

1.

FTP 212: Directory status reply. The server provides information about the current directory or a specified directory.

2.

FTP 229: Entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.

3.

You encounter 212 when after issuing the STAT command on a directory, the server returns the directory listing or status information.

4.

You encounter 229 when after issuing the EPSV command. The server responds with a port number in the format (|||port|) for the client to connect to.

ควรใช้อันไหนเมื่อไร

For 212 (Directory Status): No fix needed — this is an informational response showing directory contents or status. For 229 (Entering Extended Passive Mode): No fix needed — connect to the server's control IP on the provided port. If it fails, try falling back to PASV (227) or check firewall rules.

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