FTP Status Codes: Overview
FTP is a file transfer protocol for exchanging files over any TCP/IP based network to manipulate files on another computer on that network regardless of which operating systems are involved (if the computers permit FTP access). There are many existing FTP client and server programs. FTP servers can be set up anywhere between game servers, voice servers, internet hosts, and other physical servers. This article presents Numeric Order List of FTP Reply Codes for quick reference purposes.
|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 sign).
|120||Service ready in nnn minutes.|
|125||Data connection already open; transfer starting.|
|150||File status okay; about to open data connection.|
|202||Command not implemented, superfluous at this site.|
|211||System status, or system help reply.|
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.
Logged out if appropriate.
|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.|
|250||Requested file action okay, completed.|
|331||User name okay, need password.|
|332||Need account for login.|
|350||Requested file action pending further information.|
|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.
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||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.