FTP Archives - File transfer tool from Limagito

08 Sep
Failed to convert data connection to TLS
Failed to convert data connection
Q: What could be the reason of this?
When trying to FTP, This is the error message –
9/4/2024 3:36:11 PM FTPListDirectory, CK GetDirCount Error: ChilkatLog:
GetDirCount:
VerboseLogging: 0
listPattern: *
fetchDirListing:
pattern: *
supportsMLSD: 0
fetchDirListing2:
pbsz_protp:
simpleCommand:
sendCommand:
sendingCommand: PBSZ 0
–sendCommand
readCommandResponse:
replyLineQP: 200 OK.
–readCommandResponse
–simpleCommand
simpleCommand:
sendCommand:
sendingCommand: PROT P
–sendCommand
readCommandResponse:
replyLineQP: 200 Data connections set to secure (SSL) mode
–readCommandResponse
–simpleCommand
–pbsz_protp
setupDataConnection:
passive transfer mode
setupPassiveDataSocket:
sendCommand:
sendingCommand: PASV
–sendCommand
readCommandResponse:
replyLineQP: 227 Entering Passive Mode (XXX,XXX,XXX,XXX,XXX,XXX)
–readCommandResponse
dataConnect:
hostname: XXX.XXX.XXX.XXX
port: 49434
Setting SNI hostname for data connection.
SNI_hostname: XXXXXXXX
socketOptions:
SO_SNDBUF: 262144
SO_RCVBUF: 4194304
TCP_NODELAY: 0
SO_KEEPALIVE: 1
–socketOptions
dataConnectSuccess: 1
–dataConnect
–setupPassiveDataSocket
–setupDataConnection
sendCommand:
sendingCommand: LIST
–sendCommand
readCommandResponse:
replyLineQP: 125 Secure data connection open; transfer starting.
–readCommandResponse
convertDataConnToSsl:
ConvertToTls: Elapsed time: 0 millisec
Failed to convert data connection to TLS
–convertDataConnToSsl
Failed to convert data connection to TLS.
–fetchDirListing2
–fetchDirListing
Failed to get and cache directory listing…
N: -1
Failed.
–GetDirCount
–ChilkatLog
Could you please help in this?
A: The error indicates that while the initial control connection to the FTP server was established successfully, the client failed to upgrade the data connection to a secure TLS (Transport Layer Security) connection.
Possible causes:
Misconfiguration on the server or client side
Incompatible TLS versions between client and server
Firewall or network issues blocking the necessary ports
Outdated software that doesn’t support the required encryption methods
Common scenarios:
The FTP client is set to use explicit FTPS, but the server doesn’t support it
The server requires implicit FTPS, but the client is not configured for it
There’s a mismatch in the supported TLS versions between client and server
To resolve this issue, you could try the following:
Check your FTP client settings to ensure you’re using the correct encryption method (implicit or explicit FTPS).
Verify with your FTP server administrator that FTPS is supported and properly configured.
Try using a different FTP client to rule out client-specific issues.
Ensure your firewall isn’t blocking the necessary ports for FTPS (usually port 990 for implicit FTPS).
Update your FTP client and server software to the latest versions.
The The reason here was a mismatch in the supported TLS versions between client and server. Somehow the server has an issue with TLS and the only way to transfer the data was to disable our ‘Encrypt Data Channel” option.
$C:\Data\Foto\v2023\FTP\Failed to convert data connection\Failed to convert data connection$
The customer was using Implicit FTPS on port 990
If you need any help with this question, please let us know.
Best Regards,
Limagito Team
#ftp #managedfiletransfer #filetransfer #filemanagement
By Limagito-Team FTP failed to convert data, TLS
03 Sep
Can’t open data connection for ftp transfer
Can’t open data connection for ftp transfer
Q: I’m using the attached FTP source that I have set to get files, but I’m getting an error when reading the directory. I’m able to access the folder using Cyberduck fine with the same settings. Below is the log showing the response I get.  I’m using v2024.2.24.0. Please let me know if you need anything else to troubleshoot.
A: It looked like the system was not able to open a data connection to the FTP server (425 Can’t open data connection for transfer) and we asked the user to switch be to ‘Active’ mode. FTP is using two channels, a command and a data channel. So if you are able to connect, then you know at least the command channel is working. If you are not able to receive directory listings, then you know something is wrong with the data channel. The data channel can be used in active and passive mode (passive mode = default).
Reply user: “That seemed to work. Thank you.”
Connecting to ftp_useast.xxxxxxxx.com:22
Connection successful
Server System: 220-Xxxxx Secure FTP
220 **Authorized Access Only**
Request Path: /PAX_Test_Xpance
Response Path: /PAX_Test_Xpance
List Directory: /PAX_Test_Xpance/
List Directory /PAX_Test_Xpance/ Error
Disconnected from ftp_useast.xxxxxxxx.com:22
8/20/2024 4:14:07 PM FTPSCheckConnected, CK Login Reply: 220-Xxxxxx Secure FTP
220 **Authorized Access Only**
8/20/2024 4:14:07 PM FTPSCheckConnected, CK Request Path after Login: /
8/20/2024 4:14:07 PM FTPSCheckConnected, CK Change Path to /PAX_Test_Xpance
8/20/2024 4:14:07 PM FTPSCheckConnected, CK Request Path after Change: /PAX_Test_Xpance/
8/20/2024 4:14:17 PM FTPListDirectory, CK GetDirCount Error: ChilkatLog:
GetDirCount:
DllDate: Jan 27 2024
ChilkatVersion: 9.5.0.97
UnlockPrefix: CPSFBE
UnlockStatus: 2
Architecture: Little Endian; 64-bit
Language: Delphi DLL
VerboseLogging: 0
listPattern: *
fetchDirListing:
pattern: *
supportsMLSD: 1
fetchDirListing2:
setupDataConnection:
active transfer mode
setupActiveDataSocket:
Created data listen socket
Using ephemeral port range for Active data connection.
dataPort: 51222
portIpAddress: 192.168.xxx.xxx
MyIPv4: 192,168,xxx,xxx,200,22
sendCommand:
sendingCommand: PORT 192,168,xxx,xxx,200,22
–sendCommand
readCommandResponse:
replyLineQP: 200 Port command successful
–readCommandResponse
–setupActiveDataSocket
–setupDataConnection
sendCommand:
sendingCommand: MLSD
–sendCommand
completeDataConnection:
acceptDataConnection:
controlChannelReply:
Reading intermediate response..
readCommandResponse:
replyLineQP: 150 Opening data channel for directory listing of “/PAX_Test_Xpance”
              –readCommandResponse
–controlChannelReply
controlChannelReply:
Reading final response..
readCommandResponse:
replyLineQP: 425 Can’t open data connection for transfer of “/PAX_Test_Xpance”
              –readCommandResponse
Final response indicates error.
–controlChannelReply
–acceptDataConnection
Failed to accept data connection.
–completeDataConnection
Failed to complete the data connection.
–fetchDirListing2
–fetchDirListing
Failed to get and cache directory listing…
N: -1
Failed.
–GetDirCount
If you need any help with this ‘data connection for ftp transfer’ question, please let us know.
Best Regards,
Limagito Team
#ftp #managedfiletransfer #filetransfer #filemanagement

By Limagito-Team FTP data connection, ftp transfer
17 Mar
How to move files to different ftp folders under the same root
How to move files to different ftp folders under the same root on the same server
Q: Conditional destination request. We are looking for an easy way (one channel) to move files to different ftp folders (more than 100 folders) under the same root on the same server, where filename prefix (3 char) is the key to which folder. Prefix and folder name are different.
A few examples:
BBL > folder1
ABB > folder2
BYR > folder4
BYP > folder5
DAT > folder6
I have been looking at your blog post without finding anything like it. The list of prefixes and folders could be a text table in the script or in a csv file. Do you have a script for this?
A: Yes this is possible, please have a look at the following screenshots. This setup can be used with other Sources and Destinations too.
– We used a Windows folder as Source:
– Open our Pascal Script option
Please enable and add the following ‘On Destination’ Pascal Script:
Please add the following script: link
The script strips the first 3 characters from the filename by using ‘copy(psFilename, 1, 3)’
The stripped part is compared with ‘BBL’, ‘ABB’ .. ‘DAT’
Depending on the result of the compare, a folder name is added to our variable psVSA ( pascal script Var String A )
This psVSA variable will be used in the Destination setup as parameter (%VSA, which contains data from psVSA)
You’ll need to adjust the folder names and add more prefixes if needed
– In the FTP as Destination Setup, please adjust the ‘Create Subdir’ option to: %VSA\%SFS
Here we used the %VSA parameter, set in the Pascal Script, which contains the desired subdirectory name
– Feedback customer:
That looks easy. Thank you very much.
If you need any help with this new option, please let us know.
Best Regards,
Limagito Team
#ftp #sftp #managedfiletransfer #filetransfer #filemanagement
By Limagito-Team Filters FTP Pascal Script SFTP Conditional, different folders

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