FTP 212 Directory Status vs 503 Bad Sequence
FTP 212 (Directory Status) is a 2xx Positive Completion response, while 503 (Bad Sequence) is a 5xx Permanent Negative response. 212 indicates that directory status reply. The server provides information about the current directory or a specified directory. In contrast, 503 means that bad sequence of commands. The command is valid but was sent in the wrong order relative to other commands.
Mô tả
Directory status reply. The server provides information about the current directory or a specified directory.
Khi bạn thấy mã này
After issuing the STAT command on a directory, the server returns the directory listing or status information.
Cách khắc phục
No fix needed — this is an informational response showing directory contents or status.
Mô tả
Bad sequence of commands. The command is valid but was sent in the wrong order relative to other commands.
Khi bạn thấy mã này
When you skip a required step, like sending PASS before USER, or RNTO without first sending RNFR.
Cách khắc phục
Follow the correct command sequence. Common sequences: USER then PASS for login, RNFR then RNTO for rename, PASV then RETR for transfer.
Sự khác biệt chính
212 is a 2xx Positive Completion response, while 503 is a 5xx Permanent Negative response.
FTP 212: Directory status reply. The server provides information about the current directory or a specified directory.
FTP 503: Bad sequence of commands. The command is valid but was sent in the wrong order relative to other commands.
You encounter 212 when after issuing the STAT command on a directory, the server returns the directory listing or status information.
You encounter 503 when when you skip a required step, like sending PASS before USER, or RNTO without first sending RNFR.
Khi nào dùng cái nào
For 212 (Directory Status): No fix needed — this is an informational response showing directory contents or status. For 503 (Bad Sequence): Follow the correct command sequence. Common sequences: USER then PASS for login, RNFR then RNTO for rename, PASV then RETR for transfer.