Facing issue while logging to Jupyterhub, it shows "invalid username or password" in the frontend and "PAM authentication failed" in the backend

We went for the server reboot yesterday midnight following which we started facing this issue.

Kindly suggest as all our users in the environment as unable to login to Jupyter due to which it is affecting the Production.

Check if the users exist on the server. If the users are being synchronized from LDAP or some other IDP, may be there havent synchronized on the server following the reboot.

Also check /var/log/messages (or equivalent based on your distro) which might give you an idea on why PAM auth is failing.

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Hi @mahendrapaipuri,

Thanks for your response, could you please help me with the path where we could find the Jupyter users

I am talking about users on your Linux server. You are PAM authenticator so the Jupyter users are the server local users.

For instance what happens when you execute id c719688 on the server?

@mahendrapaipuri,

I have checked and the Jupyter user list is intact. However, all we need to do is synchronize the user list on the server. Do you know how do we do that please?

Hi, did you manage to solve the issue? Iā€™m facing the same situation. Thanks.