FTP Error Messages and Error Codes

FTP Error Codes

100 Codes

- Positive Initial Reply: Requested command is being initiated (Usually client is waiting for a reply)

• 110 - Restart Marker Reply
• 120 - Service ready in xx minutes
• 125 - Data connection open, transfer beginning
• 150 - File Status ok. Data connection about to open.



200 Codes

- Positive Completion: The command has successfully been completed.

• 200 - Command OK
• 202 - Command not implemented, superfluous
• 211 - System status/system help reply
• 212 - Directory status
• 213 - File status
• 214 - Help message (how to use the server or what a command means)
• 215 - Official system name from the list of Assigned Numbers document.
• 220 - Service ready
• 221 - Connection closing. Log out.
• 225 - Data connection open, no transfer in progress
• 226 - Closing data connection, requested file action successful
• 227 - Entering passive mode
• 230 - User logged in. Proceed.
• 250 - Requested file action OK, completed.
• 257 - Pathname created.



300 Codes

- Positive Intermediate: Command accepted, but is pending further information

• 331 - User name OK, password needed.
• 332 - Account needed to login
• 350 - Requested action pending further information



400 Codes

- Negative Completion: A temporary Error took place and the command was not accepted

• 421 - Service not available. Closing connection.
• 425 - Can not open data connection.
• 426 - Connection closed- transfer aborted.
• 450 - File unavailable - file busy
• 451 - Requested action aborted - local error processing
• 452 - Requested action not taken- Insufficient storage space



500 Codes

- Negative Completion: A permanent Error took place and the command was not accepted

• 500 - Syntax error- command not recognized
• 501 - Syntax error in parameters or arguments
• 502 - Command not implemented
• 503 - Bad sequence of commands
• 504 - Command not implemented for that parameter
• 530 - Not logged in / authentication failed
• 532 - Account needed for storing files
• 550 - File unavailable- file not found - not accessable
• 551 - Page type unknown
• 552 - Exceeded storage allocation
• 553 - File name/type not allowed



The 2nd number

- The 2nd # in the code sequence has specific information

• 0 - Syntax: Syntax error
• 1 - Informational: status and help replies
• 2 - Connection: Refers to data connection
• 3 - Authentication/Accounting: Processes for account and logon authentication
• 4 - Unspecified
• 5 - File System: Indicate status of the server file system