| FTP |
| 100 Series |
The requested action is being initiated, expect another reply before proceeding with a new command. |
| 110 |
Restart marker reply. In this case, the text is exact and not left to the particular implementation; it must read: MARK yyyy = mmmm where yyyy is User-process data stream marker, and mmmm server's equivalent marker (note the spaces between markers and "="). |
| 120 |
Service ready in nnn minutes. |
| 125 |
Data connection already open; transfer starting. |
| 150 |
File status okay; about to open data connection. |
| 200 Series |
The requested action has been successfully completed. |
| 200 |
Command okay. |
| 202 |
Command not implemented, superfluous at this site. |
| 211 |
System status, or system help reply. |
| 212 |
Directory status. |
| 213 |
File status. |
| 214 |
Help message.On how to use the server or the meaning of a particular non-standard command. This reply is useful only to the human user. |
| 215 |
NAME system type. Where 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. |
| 225 |
Data connection open; no transfer in progress. |
| 226 |
Closing data connection. Requested file action successful (for example, file transfer or file abort). |
| 227 |
Entering Passive Mode (h1,h2,h3,h4,p1,p2). |
| 230 |
User logged in, proceed. Logged out if appropriate. |
| 250 |
Requested file action okay, completed. |
| 257 |
"PATHNAME" created. |
| 300 Series |
The command has been accepted, but the requested action is dormant, pending receipt of further information. |
| 331 |
User name okay, need password. |
| 332 |
Need account for login. |
| 350 |
Requested file action pending further information |
| 400 Series |
The command was not accepted and the requested action did not take place, but the error condition is temporary and the action may be requested again. |
| 421 |
Service not available, closing control connection.This 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. |
| 451 |
Requested action aborted. Local error in processing. |
| 452 |
Requested action not taken. Insufficient storage space in system.File unavailable (e.g., file busy). |
| 500 Series |
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 |
Not logged in. |
| 532 |
Need account for storing files. |
| 550 |
Requested action not taken. File unavailable (e.g., file not found, no access). |
| 551 |
Requested action aborted. Page type unknown. |
| 552 |
Requested file action aborted. Exceeded storage allocation (for current directory or dataset). |
| 553 |
Requested action not
taken. File name not allowed. |
| 
