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

[Nagmat Nazarov]

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

[Komal Thareja]

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

[Nagmat Nazarov]

Resolved, Thanks!

• This reply was modified 2 months, 1 week ago by Nagmat Nazarov.

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