Q: I’m getting the following FTP 425 Error: Unable to build data connection when trying to connect to a FTPS server.
A: Please enable ‘Use SSL Session Resumtion’. This ensures a re-use of the SSL session which is a must for certain FTPS servers.
If you need help, please let us know.
Regards,
Limagito Team
We received a 501 error message from a customer who was trying to connect to a Gene6 FTP Server:
The solution was to add the following “Send Command(s) after connect:
CLNT www.yourcompany.com
CLNT command: Short for CLieNT = client identification to the FTP server
If you need any help, please let us know.
Regards,
Limagito Team
https://www.secureblackbox.com/kb/help/ref_err_ftperrorcodes.html
| Copyright www.secureblackbox.com | Value | Description |
| SB_FTPS_ERROR_CONTROL_CHANNEL_HANGUP | 114689 (0x1C001) | Some servers hang up control channels if no information is sent or received within rather short time. Hence, on large file transfers, the code which reports successful operation completion (226/250) is not sent by the server. FTPS client returns SB_FTPS_ERROR_CONTROL_CHANNEL_HANGUP error code when the command channel hangs up, but when the session was gracefully closed by the server (i.e., file transfer was finished successfully). |
| SB_FTPS_ERROR_CONTROL_CHANNEL_NO_DATA | 114690 (0x1C002) | No data is being transferred via control channel. |
| SB_FTPS_ERROR_UNACCEPTED_REPLY_CODE | 115713 (0x1C401) | Unaccepted reply code. Such codes may be sent by servers when data connection closure was initiated on the client side. |
| SB_FTPS_ERROR_INVALID_REPLY | 115714 (0x1C402) | Invalid reply. |
| SB_FTPS_ERROR_LOCAL_SOURCE_NOT_FILE | 116737 (0x1C801) | Local source is not a file. |
| SB_FTPS_ERROR_LOCAL_TARGET_NOT_FILE | 116738 (0x1C802) | Local target is not a file. |
| SB_FTPS_ERROR_RESUME_OFFSET_TOO_LARGE | 116739 (0x1C803) | This error is fired when the it is impossible to resume data transfer (because resume offset is too large). |
| SB_FTPS_ERROR_OPERATION_CRITERIA_NOT_MET | 116740 (0x1C804) | The criteria for the requested operation is not met. |
| SB_FTPS_ERROR_TIMES_NOT_SET | 116741 (0x1C805) | The criteria for the requested operation is not met. |
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