| Code |
Description |
| 100 Codes |
The requested action is being taken. Expect a reply before proceeding with a new command. |
| 110 |
Restart marker reply. |
| 120 |
Service ready in (n) minutes. |
| 125 |
Data connection already open, transfer starting. |
| 150 |
File status okay, about to open data connection. |
| 200 Codes |
The requested action has been successfully completed. |
| 200 |
Command okay. |
| 202 |
Command not implemented |
| 211 |
System status, or system help reply. |
| 212 |
Directory status. |
| 213 |
File status. |
| 214 |
Help message. |
| 215 |
NAME system type. (NAME is an official system name from the list in the Assigned Numbers document.) |
| 220 |
Service ready for new user. |
| 221 |
Service closing control connection. (Logged out if appropriate.) |
| 225 |
Data connection open, no transfer in progress. |
| 226 |
Closing data connection. Requested file action successful (file transfer, abort, etc.). |
| 227 |
Entering Passive Mode |
| 230 |
User logged in, proceed. |
| 250 |
Requested file action okay, completed. |
| 257 |
"PATHNAME" created. |
| 300 Codes |
The command has been accepted, but the requested action is being held pending receipt of further information. |
| 331 |
User name okay, need password. |
| 332 |
Need account for login. |
| 350 |
Requested file action pending further information. |
| 400 Codes |
The command was not accepted and the requested action did not take place.
Tthe error condition is temporary, however, and the action may be requested again. |
| 421 |
Service not available, closing control connection. (May be a reply to any command if the service knows it must shut down.)` |
| 425 |
Can't open data connection. |
| 426 |
Connection closed, transfer aborted. |
| 450 |
Requested file action not taken. File unavailable (e.g., file busy). |
| 451 |
Requested action aborted, local error in processing. |
| 452 |
Requested action not taken. Insufficient storage space in system. |
| 500 Codes |
The command was not accepted and the requested action did not take place. |
| 500 |
Syntax error, command unrecognized. This may include errors such as command line too long. |
| 501 |
Syntax error in parameters or arguments. |
| 502 |
Command not implemented. |
| 503 |
Bad sequence of commands. |
| 504 |
Command not implemented for that parameter. |
| 530 |
User not logged in. |
| 532 |
Need account for storing files. |
| 550 |
Requested action not taken. File unavailable (e.g., file not found, no access). |
| 552 |
Requested file action aborted, storage allocation exceeded |
| 553 |
Requested action not taken. Illegal file name. |