1. Lost ssh access to my nodes in the experiment, how to reinstate it?
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Lost ssh access to my nodes in the experiment, how to reinstate it?

Home › Forums › FABRIC General Questions and Discussion › Lost ssh access to my nodes in the experiment, how to reinstate it?

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  • February 26, 2024 at 12:12 pm #6607
    Nagmat Nazarov
    Participant

      Dear community,

      I was working with my nodes via ssh but suddenly lost connection to them and can’t connect anymore:

      The error I am getting is :

      ” Warning: Permanently added ‘bastion.fabric-testbed.net’ (ED25519) to the list of known hosts.
      nxn6972_0000148614@bastion.fabric-testbed.net: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
      kex_exchange_identification: Connection closed by remote host
      Connection closed by UNKNOWN port 65535 ” What maybe the issue?

      The slice id : df4728b6-e830-408d-b426-aff3184c8f08

      Kind regards,

      Nagmat

      February 26, 2024 at 12:21 pm #6608
      Komal Thareja
      Participant

        Hello Nagmat,

        I suspect your bastion keys are expired and hence the failure.

        Could you please run the notebook: jupyter-examples-rel1.6.1/configure_and_validate.ipynb ?

        This should update your bastion keys if expired. Please try SSH access again after that from console as well as the notebook. Please restart the notebook kernel after the keys are updated.

        Thanks,

        Komal

        February 26, 2024 at 12:27 pm #6609
        Nagmat Nazarov
        Participant

          Resolved, Thanks!

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