Open System Services Shell and Utilities Reference Manual (G06.25+, H06.03+)

Miscellaneous Files and Commands ftpserver(7)
504 Command not implemented for that parameter.
211 System status, or system help reply.
212 Directory status.
213 File status.
214 Help message.
120 Service ready in nnn minutes.
220 Service ready for new user.
221 Service closing control connection. Logged out if appropriate.
421 Service not available, closing control connection. This may be a reply to any
command if the service knows it must shut down.
125 Data connecton already open; transfer starting.
225 Data connection open; no transfer in progress.
425 Can’t open data connection.
226 Closing data connection. Requested file action successful (for example, file
transfer or file abort).
426 Connection closed; transfer aborted.
227 Entering Passive Mode (h1,h2,h3,h4,p1,p2).
230 User logged in, proceed.
530 Not logged in.
331 User name okay, need password.
332 Need account for login.
532 Need account for storing files.
150 File status okay; about to open data connection.
250 Requested file action okay, completed.
350 Requested file action pending further information.
450 Requested file action not taken. File unavailable (for example, file busy).
550 Requested action not taken. File unavailable (for example, file not found, no
access).
451 Requested action aborted. Local error in processing.
551 Requested action aborted. Page type unknown.
452 Requested action not taken. Insufficient storage space in system.
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