Re: com.jcraft.jsch.JSchException: Auth cancel for... - Qlik Community

himanshup · ‎2024-07-31

Hi,

on runnuiong the job in Talend8 studio (localhost or remoteserver), I am getting this error:

Exception in component tFTPPut_1 (FTP)

com.jcraft.jsch.JSchException: Auth cancel for methods 'password,publickey'

at com.jcraft.jsch.Session.connect(Session.java:532)

at com.jcraft.jsch.Session.connect(Session.java:194)

at edi_anthology.ftp_1_0.FTP.tFTPPut_1Process(FTP.java:1001)

at edi_anthology.ftp_1_0.FTP.tSetGlobalVar_1Process(FTP.java:1461)

at edi_anthology.ftp_1_0.FTP.runJobInTOS(FTP.java:2197)

at edi_anthology.ftp_1_0.FTP.main(FTP.java:1746)

[FATAL] 15:42:52 edi_anthology.ftp_1_0.FTP- tFTPPut_1 Auth cancel for methods 'password,publickey'

com.jcraft.jsch.JSchException: Auth cancel for methods 'password,publickey'

at com.jcraft.jsch.Session.connect(Session.java:532) ~[jsch-0.2.1.jar:0.2.1]

at com.jcraft.jsch.Session.connect(Session.java:194) ~[jsch-0.2.1.jar:0.2.1]

at edi_anthology.ftp_1_0.FTP.tFTPPut_1Process(FTP.java:1001) [classes/:?]

at edi_anthology.ftp_1_0.FTP.tSetGlobalVar_1Process(FTP.java:1461) [classes/:?]

at edi_anthology.ftp_1_0.FTP.runJobInTOS(FTP.java:2197) [classes/:?]

at edi_anthology.ftp_1_0.FTP.main(FTP.java:1746) [classes/:?]

[statistics] disconnected

We are on:

Talend Data Services Platform

Version: 8

Build id: 20240524_0800-patch

Xiaodi_Shi · ‎2024-07-31

Hello,

Which version of java do you use? The updates for Talend products delivered in May 2024 came with the requirement to start most of the modules with Java 17.

https://help.talend.com/en-US/installation-guide-windows/Cloud/compatible-java-environments

What's your key type? Is it ssh-ed25519?

Here is an article about:

https://github.com/mwiede/jsch#are-ssh-ed25519-ssh-ed448-curve25519-sha256-curve448-sha512--chacha20...

I'm supposing you need either higher version of java or add bouncy castle with a tLibraryLoad component.

Best regards

Sabrina

himanshup · ‎2024-08-01

Hello,

I downloaded the Bouncy Castle and included that in tLibraryLoad component. I got the same error.
I am not sure how to tell what the key type is. I am fairly new to Talend.
I am trying to upgrade an existing project from Talend 7 to Talend 8

Thank you.

Xiaodi_Shi · ‎2024-08-01

Hello,

1. Please try adding the parameters below to the "Config client" option of tFTPConnection as below and let us know if that resolves the issue:
Client Parameter : "PubkeyAcceptedKeyTypes"
Value : "ssh-rsa"

or
JSch.setConfig("PubkeyAcceptedKeyTypes", "ssh-rsa," + JSch.getConfig("PubkeyAcceptedKeyTypes"));

https://help.talend.com/en-US/components/8.0/ftp/tftpconnection-standard-properties

2. If the suggestion above does not work, can you please try using downloading jsch-0.1.55 and see if that allows the job to run? This can be added to your job using tLibraryload or using the "Custom maven uri"/manually adding the jar in Studio.

Best regards

Sabrina

himanshup · ‎2024-08-05

Hi Sabrina,

Thanks for the recommendations.
RE:

1. I am using tFTPPut component, and I added Client Parameter : "PubkeyAcceptedKeyTypes"
Value : "ssh-rsa".

However, I am not sure how to add:JSch.setConfig("PubkeyAcceptedKeyTypes", "ssh-rsa," + JSch.getConfig("PubkeyAcceptedKeyTypes"));

2. I added tLibraryload component using jsch-0.1.55.jar; and that one also errored out. However, this time the error is different :

Exception in component tFTPPut_1 (FTP)
com.jcraft.jsch.JSchException: Auth cancel
 at com.jcraft.jsch.Session.connect(Session.java:518)
 at com.jcraft.jsch.Session.connect(Session.java:183)
 at edi_anthology.ftp_1_0.FTP.tFTPPut_1Process(FTP.java:1024)
 at edi_anthology.ftp_1_0.FTP.tSetGlobalVar_1Process(FTP.java:1636)
 at edi_anthology.ftp_1_0.FTP.runJobInTOS(FTP.java:2384)
 at edi_anthology.ftp_1_0.FTP.main(FTP.java:1921)
[FATAL] 08:44:43 edi_anthology.ftp_1_0.FTP- tFTPPut_1 Auth cancel
com.jcraft.jsch.JSchException: Auth cancel
at com.jcraft.jsch.Session.connect(Session.java:518) ~[jsch-0.1.55.jar:?]
at com.jcraft.jsch.Session.connect(Session.java:183) ~[jsch-0.1.55.jar:?]
at edi_anthology.ftp_1_0.FTP.tFTPPut_1Process(FTP.java:1024) [classes/:?]
at edi_anthology.ftp_1_0.FTP.tSetGlobalVar_1Process(FTP.java:1636) [classes/:?]
at edi_anthology.ftp_1_0.FTP.runJobInTOS(FTP.java:2384) [classes/:?]
at edi_anthology.ftp_1_0.FTP.main(FTP.java:1921) [classes/:?]
[statistics] disconnected
 
Job FTP ended at 08:44 05/08/2024. [Exit code = 1]
 
Thanks again.
 

Xiaodi_Shi · ‎2024-08-06

Hello,

The "Config client" option is available in tFTPConnection component which is used to set JSch encryption algorithm properties.

Please use tFTPConnection-->onsubjobok-->tFTPPut to put files onto an FTP server.

Best regards

Sabrina

himanshup · ‎2024-08-08

Thanks Sabrina,

Where do I use:
JSch.setConfig("PubkeyAcceptedKeyTypes", "ssh-rsa," + JSch.getConfig("PubkeyAcceptedKeyTypes"));

Also,

I added tFTPConnection component with Client Parameter : "PubkeyAcceptedKeyTypes"
Value : "ssh-rsa".;
Then tFTPConnection-->onsubjobok-->tFTPPut.
Added bouncy castle and jsch-0.1.55.jar in tLibraryLoad component for each; I get this INFO/Exception messages with Exit Code = 1:

Starting job FTP at 10:20 08/08/2024.
[INFO ] 10:20:26 edi_anthology.ftp_1_0.FTP- Project name: EDI_ANTHOLOGY 
Job name: FTP GIT Commit ID: 67110b72734c5c4de41d892c771ccb7cc2adccc4
Talend Version: 8.0.1.20240524_0800-patch
[INFO ] 10:20:26 edi_anthology.ftp_1_0.FTP- TalendJob: 'FTP' - Start.
[INFO ] 10:20:26 edi_anthology.ftp_1_0.FTP- TalendJob: 'FTP' - Started.
[statistics] connecting to socket on port 3513
[statistics] connected
[INFO ] 10:20:26 edi_anthology.ftp_1_0.FTP- tFTPConnection_1 - SFTP authentication using a public key.
[INFO ] 10:20:27 edi_anthology.ftp_1_0.FTP- tFTPConnection_1 - Attempt to connect to 'ftp.campuslabs.com' with username 'unr'.
Exception in component tFTPConnection_1 (FTP)
com.jcraft.jsch.JSchException: Auth cancel
 at com.jcraft.jsch.Session.connect(Session.java:518)
 at edi_anthology.ftp_1_0.FTP.tFTPConnection_1Process(FTP.java:1004)
 at edi_anthology.ftp_1_0.FTP.tSetGlobalVar_1Process(FTP.java:1999)
 at edi_anthology.ftp_1_0.FTP.runJobInTOS(FTP.java:2759)
 at edi_anthology.ftp_1_0.FTP.main(FTP.java:2284)
[FATAL] 10:20:28 edi_anthology.ftp_1_0.FTP- tFTPConnection_1 Auth cancel
com.jcraft.jsch.JSchException: Auth cancel
at com.jcraft.jsch.Session.connect(Session.java:518) ~[jsch-0.1.55.jar:?]
at edi_anthology.ftp_1_0.FTP.tFTPConnection_1Process(FTP.java:1004) [classes/:?]
at edi_anthology.ftp_1_0.FTP.tSetGlobalVar_1Process(FTP.java:1999) [classes/:?]
at edi_anthology.ftp_1_0.FTP.runJobInTOS(FTP.java:2759) [classes/:?]
at edi_anthology.ftp_1_0.FTP.main(FTP.java:2284) [classes/:?]
[statistics] disconnected
[INFO ] 10:20:28 edi_anthology.ftp_1_0.FTP- TalendJob: 'FTP' - Finished - status: failure returnCode: 1
 
Job FTP ended at 10:20 08/08/2024. [Exit code = 1]
 

Xiaodi_Shi · ‎2024-08-08

Hello,

Please try adding the parameter under tFTPConnection > Advanced settings > Config client > Client parameter:

Here is a related official article about:

https://community.qlik.com/t5/Official-Support-Articles/Talend-Studio-Expanding-your-SFTP-security-a...

Best regards

Sabrina

himanshup · ‎2024-08-16

Hi Sabrina,

I have tried the solutions that you have suggested, and still am getting the Auth cancel message.

Xiaodi_Shi · ‎2024-08-19

Hello,

Could you please create a support case for your issue on our support portal? In this way, we could give you a remote assistance through support cycle with priority.

https://community.qlik.com/t5/Official-Support-Articles/How-to-contact-Qlik-Support/ta-p/1837529

Best regards

Sabrina