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Former Member

Connection to SFTP server failed - the login credentials provided are incorrect

Hi Experts,

We are getting the following error message at the sender SFTP comm channel for the normal authentication method, user & password.


We already openned successfully an SFTP session from the AIX OS where the SAP PI 7.31 SP13 is installed in order to confirm any firewall issue. Also we confirmed the SFTP adapter instalation and everything is ok. Of course we made a double check on the user & password.



I purposely configured with wrong server fingerprint (only for testing) and I get the message asking to configure it with the correct server fingerprint.

Could TCP Gateway tool help me with this issue?

Has anyone already faced this issues?

Tks,
Leandro Silva

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5 Answers

  • Apr 17, 2017 at 02:38 PM

    Leandro ,

    user.sftp is standard variable name defined for SFTP adapter , so i don't think this is a issue.

    However have u tried with mentioning domain name as well .

    Br,

    Manoj

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    Former Member
    Apr 17, 2017 at 01:09 PM

    Can be the user "user.sftp"? It contain a dot "."
    I already asked another user with no dot "."

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    Former Member
    Apr 17, 2017 at 02:53 PM

    Hi Manoj,

    I just tried with user.sftp@domain.com and I got the same message.

    Thanks,
    Leandro Silva

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    • Former Member Manoj K

      Hi Manoj,

      Our SFTP adapter is alredy on the latest SP04 & pacth 32 level! In addition, the "JCE Unlimited Strength Jurisdiction Policy" is updated as well! But the error message still ocurring.

      Remote version: SSH-2.0-OpenSSH_5.3
      Local version: SSH-2.0-JSCH-0.1.53

      Do you think if they increase the OpenSSH version, will that solve it?

      Thanks a lot!
      Leandro Silva

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    Former Member
    Apr 24, 2017 at 07:48 AM

    Hi Leandro,

    We are facing the same error and tried the standard steps - did you get any solution to the issue.

    Regards Subhro

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    • Former Member

      Hi Subhro De,

      Not yet! I asked them to increse the OpenSSH version level from 5.3 to 6.0. In addition, I generated a public key using this blog as a refrence - https://wiki.scn.sap.com/wiki/display/XI/Generating+SSH+Keys+for+SFTP+Adapters+-+Type+2


      Once they update the OpenSSH, I will try to connect it using the key-based authentication. I will let you know if I get sucess ion this.

      Are you getting the "is not available" error message for the algorithm negotiations?


      --- SFTP Logs---
      Check Ciphers
      Check Kexes
      Check Signatures

      #Line 79: aes256-ctr is not available.
      #Line 83: aes192-ctr is not available.
      #Line 87: aes256-cbc is not available.
      #Line 91: aes192-cbc is not available.
      #Line 99: ecdh-sha2-nistp256 is not available.
      #Line 103: ecdh-sha2-nistp384 is not available.
      #Line 107: ecdh-sha2-nistp521 is not available.
      #Line 115: ecdsa-sha2-nistp256 is not available.
      #Line 119: ecdsa-sha2-nistp384 is not available.
      #Line 123: ecdsa-sha2-nistp521 is not available.#


      Which is the remote & local version in your scenario?

      Thanks
      Leandro Silva

  • Apr 26, 2017 at 10:33 AM

    Hi Leandro,

    All looks good and should work. Just few checking -

    1) Can you login to SFTP using File Zilla/CoreFTP etc using this credential?

    2) Did you deploy latest SFTP PGP Addon?

    3) Hope the SFTP service is activated properly in NWA-> Operation->Start & Stop.

    Thanks,

    Apu

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    • Former Member

      Hi Apu Das,

      Yes! For all

      1) Can you login to SFTP using File Zilla/CoreFTP etc using this credential?
      Yes! Also by Open SFTP over OS where SAP PI is installed

      2) Did you deploy latest SFTP PGP Addon?
      Yes! SP04 & Patch 33

      3) Hope the SFTP service is activated properly in NWA-> Operation->Start & Stop.
      Yes! Bcz the sender comm channel is up & running - the server finger print is being verified by server Open SSH

      Thanks,

      Leandro Silva