SFTP/FTP activities overview
Arguments
| Icon | Activity | Description |
|---|---|---|
 | Close SFTP/FTP Connection | Closes an open connection to an SFTP/FTP server. |
| Create FTP Connection Configuration | Creates a set of properties needed to open a connection to an FTP server. |
| Create SFTP Connection Configuration | Creates a set of properties needed to open a connection to an SFTP server. |
| Create SFTP/FTP Reader Configuration | Creates a reader configuration to be used by the Start SFTP/FTP Reader activity. |
| Delete SFTP/FTP File | Deletes a file from an SFTP/FTP server. |
| Download SFTP/FTP File To Stream | Downloads a file from an SFTP/FTP server. |
| Get Current SFTP/FTP Directory | Get the current directory on an SFTP/FTP server. |
| Get Next SFTP/FTP File | Requests the next file from a started SFTP/FTP Reader. |
| List SFTP/FTP Directory | Lists the contents of a directory on an SFTP/FTP server. |
| Open Next SFTP/FTP File | Requests the next file from a started SFTP/FTP Reader and returns a stream of the downloaded file. |
| Open SFTP/FTP Connection | Opens a connection to an SFTP/FTP server with the specified connection configuration. |
| Rename SFTP/FTP File | Renames a file on an SFTP/FTP server. |
| Send FTP Command | Sends a command to an FTP server using the provided connection. |
| Set Current SFTP/FTP Directory | Sets the current directory on the active SFTP/FTP server. |
| SFTP/FTP Reader | Regularly polls an SFTP or FTP directory for files, and matches the files against specified criteria. Files matching the criteria are downloaded. |
| SFTP/FTP Reader Ex | Regularly polls an SFTP or FTP directory for files, and matches the files against specified criteria. Files matching the criteria are downloaded to a stream. |
| SFTP/FTP Reader Template | Creates the activities needed to monitor an SFTP/FTP server directory for files, matching a specified filter. |
| SFTP/FTP Reader Ex Template | Creates the activities needed to monitor an SFTP/FTP server directory for files, matching a specified filter. |
| SFTP/FTP Writer | Writes a file to an SFTP/FTP server and allows renaming of the file. |
| SFTP/FTP Writer Ex | Writes a stream to an SFTP/FTP server and allows renaming of the file. |
| Start SFTP/FTP Reader | Starts reading files from an SFTP/FTP server using the provided configuration and connection. |
| Stop SFTP/FTP Reader | Stops reading file on an SFTP/FTP server using the provided subscription ID. |
| Upload SFTP/FTP File From Stream | Uploads a file to an SFTP/FTP server. |
Remarks
SFTP/FTP activities may throw FtpException. For example, when connected to an FTP server and the server responds with an unaccepted response code, the ErrorCode property of the exception will contain the response code from the FTP server.
If an error occurs that is not generated by a response code from the server (for example, a socket error or SSL communication problem), a CommunicationException or another exception type such as SocketException may be thrown, depending on the nature of the error.
Below are lists of common FTP error codes. The list is provided for reference only, and is not necessarily complete.
100 Series
The requested action was initiated; expect another reply before proceeding with a new command.
| Code | Description | Discussion |
|---|---|---|
| 110 | Restart marker reply. | 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 nn minutes. | (Informational) |
| 125 | Data Connection already open; transfer starting. | (Informational) |
| 150 | File status okay; about to open data connection. | FTP uses two ports: 21 for sending commands, and 20 for sending data. A status code of 150 indicates that the server is about to open a new connection on port 20 to send some data. |
200 Series
The requested action has been successfully completed.
| Code | Description | Discussion |
|---|---|---|
| 200 | Command okay. | (Informational) |
| 202 | Command not implemented, superfluous at this site. | (Informational) |
| 211 | System status, or system help reply. | (Informational) |
| 212 | Directory status. | (Informational) |
| 213 | File status. | (Informational) |
| 214 | Help message. | (Informational) |
| 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. | (Informational) |
| 221 | Service closing control connection. | Logged out if appropriate. |
| 225 | Data connection open; no transfer in progress. | (Informational) |
| 226 | Closing data connection. | Requested file action successful (for example; file transfer or file abort). The command opens a data connection on port 20 to perform an action, such as transferring a file. This action successfully completes, and the data connection is closed. |
| 227 | Entering Passive Mode. | (h1,h2,h3,h4,p1,p2) |
| 230 | User logged in, proceed. This status code appears after the client sends the correct password. It indicates that the user has successfully logged on. | (Informational) |
| 250 | Requested file action okay, completed. | (Informational) |
| 257 | "PATHNAME" created. | (Informational) |
300 Series
The command has been accepted, but the requested action is on hold, pending receipt of further information.
| Code | Description | Discussion |
|---|---|---|
| 331 | User name okay, need password. | You see this status code after the client sends a user name, regardless of whether the user name that is provided is a valid account on the system. |
| 332 | Need account for login. | Provide login credentials |
| 350 | Requested file action pending further information. | (Informational) |
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.
| Code | Description | Discussion |
|---|---|---|
| 421 | Error 421 Service not available, closing control connection. Error 421 User limit reached Error 421 You are not authorized to make the connection Error 421 Max connections reached Error 421 Max connections exceeded | This can be a reply to any command if the service knows it must shut down. Try logging in later. |
| 425 | Cannot open data connection. | Change from PASV to PORT mode, check your firewall settings, or try to connect via HTTP. |
| 426 | Connection closed; transfer aborted. | The command opens a data connection to perform an action, but that action is canceled, and the data connection is closed. Try logging back in; contact your hosting provider to check if you need to increase your hosting account; try disabling the firewall on your PC to see if that solves the problem. If not, contact your hosting provider or ISP. |
| 450 | Requested file action not taken. | File unavailable (e.g., file busy). Try again later. |
| 451 | Requested action aborted: local error in processing. | Ensure command and parameters were typed correctly. |
| 452 | Requested action not taken. Insufficient storage space in system. | Ask FTP administrator to increase allotted storage space, or archive/delete remote files. |
500 Series
The command was not accepted and the requested action did not take place.
| Code | Description | Discussion |
|---|---|---|
| 500 | Syntax error, command unrecognized, command line too long. | Try switching to passive mode. |
| 501 | Syntax error in parameters or arguments. | Verify your input; e.g., make sure there are no erroneous characters, spaces, etc. |
| 502 | Command not implemented. | The server does not support this command. |
| 503 | Bad sequence of commands. | Verify command sequence. |
| 504 | Command not implemented for that parameter. | Ensure entered parameters are correct. |
| 530 | User not logged in. | Ensure that you typed the correct user name and password combination. Some servers use this code instead of 421 when the user limit is reached |
| 532 | Need account for storing files. | Logged in user does not have permission to store files on remote server. |
| 550 | Requested action not taken. File unavailable, not found, not accessible. | Verify that you are attempting to connect to the correct server/location. The administrator of the remote server must provide you with permission to connect via FTP. |
| 552 | Requested file action aborted. Exceeded storage allocation. | More disk space is needed. Archive files on the remote server that you no longer need. |
| 553 | Requested action not taken. File name not allowed. | Change the file name or delete spaces/special characters in the file name. |