Specifications

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Reply Codes
The messages that FTP servers send during and after FTP operations vary, but servers all
use the same reply codes. (See Table.) All function numbers therefore supply these as their
return value (
REPLY%).
Reply Codes Description
110 Restart marker replay.
120 Service ready in nnn minutes.
125 Data connection already open; transfer starting.
150 File status okay; about to open data connection.
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 users.
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.
257 “PATHNAME” created.
331 User name okay, need password.
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.