FTP 214 Help Message vs 501 Syntax Error in Arguments
FTP 214 (Help Message) is a 2xx Positive Completion response, while 501 (Syntax Error in Arguments) is a 5xx Permanent Negative response. 214 indicates that help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command. In contrast, 501 means that syntax error in parameters or arguments. The command was recognized but its arguments are invalid or malformed.
Mô tả
Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
Khi bạn thấy mã này
After issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
Cách khắc phục
No fix needed — this is an informational response. Use it to discover which commands the server supports.
Mô tả
Syntax error in parameters or arguments. The command was recognized but its arguments are invalid or malformed.
Khi bạn thấy mã này
When you use a valid command but with wrong parameters, such as an invalid path format or incorrect argument count.
Cách khắc phục
Review the command's required argument format. Common issues include missing quotes around paths with spaces or invalid character encoding.
Sự khác biệt chính
214 is a 2xx Positive Completion response, while 501 is a 5xx Permanent Negative response.
FTP 214: Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
FTP 501: Syntax error in parameters or arguments. The command was recognized but its arguments are invalid or malformed.
You encounter 214 when after issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
You encounter 501 when when you use a valid command but with wrong parameters, such as an invalid path format or incorrect argument count.
Khi nào dùng cái nào
For 214 (Help Message): No fix needed — this is an informational response. Use it to discover which commands the server supports. For 501 (Syntax Error in Arguments): Review the command's required argument format. Common issues include missing quotes around paths with spaces or invalid character encoding.