FTP 214 Help Message vs 500 Syntax Error
FTP 214 (Help Message) is a 2xx Positive Completion response, while 500 (Syntax Error) 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, 500 means that syntax error, command unrecognized. The server could not parse the command. This may also be sent when the command line is too long.
説明
Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
このコードが表示される場合
After issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
解決方法
No fix needed — this is an informational response. Use it to discover which commands the server supports.
説明
Syntax error, command unrecognized. The server could not parse the command. This may also be sent when the command line is too long.
このコードが表示される場合
When you send a malformed or misspelled command, or a command the server does not recognize at all.
解決方法
Check the command spelling and syntax. Use HELP to see the list of supported commands on this server.
主な違い
214 is a 2xx Positive Completion response, while 500 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 500: Syntax error, command unrecognized. The server could not parse the command. This may also be sent when the command line is too long.
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 500 when when you send a malformed or misspelled command, or a command the server does not recognize at all.
どちらをいつ使うか
For 214 (Help Message): No fix needed — this is an informational response. Use it to discover which commands the server supports. For 500 (Syntax Error): Check the command spelling and syntax. Use HELP to see the list of supported commands on this server.