FTP 214 Help Message vs 530 Not Logged In
FTP 214 (Help Message) is a 2xx Positive Completion response, while 530 (Not Logged In) 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, 530 means that not logged in. The user is not authenticated and must log in before the requested command can be executed.
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
Not logged in. The user is not authenticated and must log in before the requested command can be executed.
このコードが表示される場合
When you try to access files or run commands before authenticating, or after providing incorrect login credentials.
解決方法
Send USER and PASS commands with valid credentials. If login fails repeatedly, verify the username, password, and check if the account is locked.
主な違い
214 is a 2xx Positive Completion response, while 530 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 530: Not logged in. The user is not authenticated and must log in before the requested command can be executed.
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 530 when when you try to access files or run commands before authenticating, or after providing incorrect login credentials.
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 530 (Not Logged In): Send USER and PASS commands with valid credentials. If login fails repeatedly, verify the username, password, and check if the account is locked.