FTP 214 Help Message vs 331 Username OK, Need Password
FTP 214 (Help Message) is a 2xx Positive Completion response, while 331 (Username OK, Need Password) is a 3xx Positive Intermediate 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, 331 means that user name okay, need password. The server recognized the username and is waiting for the corresponding password to complete authentication.
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
User name okay, need password. The server recognized the username and is waiting for the corresponding password to complete authentication.
このコードが表示される場合
After sending the USER command with a valid username. The server is prompting for the PASS command.
解決方法
Send the PASS command with the correct password. If you get 530 after PASS, the password is wrong — verify your credentials.
主な違い
214 is a 2xx Positive Completion response, while 331 is a 3xx Positive Intermediate 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 331: User name okay, need password. The server recognized the username and is waiting for the corresponding password to complete authentication.
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 331 when after sending the USER command with a valid username. The server is prompting for the PASS command.
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 331 (Username OK, Need Password): Send the PASS command with the correct password. If you get 530 after PASS, the password is wrong — verify your credentials.