FTP 202 Command Superfluous vs 214 Help Message
Both FTP 202 (Command Superfluous) and 214 (Help Message) belong to the 2xx Positive Completion category. 202 indicates that the command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect. Meanwhile, 214 means that help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
Описание
The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
Когда вы это видите
When you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.
Как исправить
No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue.
Описание
Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
Когда вы это видите
After issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
Как исправить
No fix needed — this is an informational response. Use it to discover which commands the server supports.
Ключевые различия
FTP 202: The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
FTP 214: Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.
You encounter 202 when when you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.
You encounter 214 when after issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.
Когда что использовать
For 202 (Command Superfluous): No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue. For 214 (Help Message): No fix needed — this is an informational response. Use it to discover which commands the server supports.