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Issue description

The presentation in ch14s05 in the subheading "Register a RHEL System with Red Hat Insights" uses basic authentication.

Red ** Hat Insights no longer supports basic authentication:

Basic Authentication has been deprecated. If you are using Basic Authentication, you must change to one of the currently supported authenticated methods. For more information about changing from Basic Authentication to certificate-based authentication for user access, refer to How to switch from Basic Auth to Certificate Authentication for Red Hat Insights.

https://access.redhat.com/documentation/en-us/red_hat_insights/1-latest/html/client_configuration_guide_for_red_hat_insights/assembly-client-data-cg-authentication

As of February 29, it hasn't just been deprecated, it has been disabled:

End of Life for Basic Authentication for Insights client

Effective February 29th, 2024, the insights-client will no longer support Basic Authentication (authmethod=basic) as an option for connecting a host with Red Hat Insights. For more information, and guidance about how to switch to alternative options, see the Red Hat Insights lifecycle and update page.

https://access.redhat.com/documentation/en-us/red_hat_insights/1-latest/html-single/release_notes/index#insights_client_rhc

It looks like the procedure now requires that the host be registered by using an activation key, but we need to review the KBASE article and make any necessary updates to this content.