FTP 213 File Status vs 331 Username OK, Need Password
FTP 213 (File Status) is a 2xx Positive Completion response, while 331 (Username OK, Need Password) is a 3xx Positive Intermediate response. 213 indicates that file status reply. The server provides information about a specific file, typically its size or modification time. 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.
Descrição
File status reply. The server provides information about a specific file, typically its size or modification time.
Quando você o vê
After issuing the SIZE or MDTM command, the server returns the file size in bytes or the last modification timestamp.
Como corrigir
No fix needed — this is an informational response. Use the returned data to determine file size before download or to check timestamps for synchronization.
Descrição
User name okay, need password. The server recognized the username and is waiting for the corresponding password to complete authentication.
Quando você o vê
After sending the USER command with a valid username. The server is prompting for the PASS command.
Como corrigir
Send the PASS command with the correct password. If you get 530 after PASS, the password is wrong — verify your credentials.
Diferenças principais
213 is a 2xx Positive Completion response, while 331 is a 3xx Positive Intermediate response.
FTP 213: File status reply. The server provides information about a specific file, typically its size or modification time.
FTP 331: User name okay, need password. The server recognized the username and is waiting for the corresponding password to complete authentication.
You encounter 213 when after issuing the SIZE or MDTM command, the server returns the file size in bytes or the last modification timestamp.
You encounter 331 when after sending the USER command with a valid username. The server is prompting for the PASS command.
Quando usar qual
For 213 (File Status): No fix needed — this is an informational response. Use the returned data to determine file size before download or to check timestamps for synchronization. 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.