FTP 200 Command OK vs 500 Syntax Error
FTP 200 (Command OK) is a 2xx Positive Completion response, while 500 (Syntax Error) is a 5xx Permanent Negative response. 200 indicates that the command has been successfully executed. This is a general acknowledgment that the command was understood and carried out. 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.
描述
The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
何时出现
After issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
如何修复
No fix needed — the command succeeded. This is the standard positive response for commands that don't return data.
描述
Syntax error, command unrecognized. The server could not parse the command. This may also be sent when the command line is too long.
何时出现
When you send a malformed or misspelled command, or a command the server does not recognize at all.
如何修复
Check the command spelling and syntax. Use HELP to see the list of supported commands on this server.
主要区别
200 is a 2xx Positive Completion response, while 500 is a 5xx Permanent Negative response.
FTP 200: The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
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 200 when after issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
You encounter 500 when when you send a malformed or misspelled command, or a command the server does not recognize at all.
何时使用哪个
For 200 (Command OK): No fix needed — the command succeeded. This is the standard positive response for commands that don't return data. For 500 (Syntax Error): Check the command spelling and syntax. Use HELP to see the list of supported commands on this server.