Regarding the authentication method of the virtual server (RHEL) created from the official image template in Enterprise Cloud 2.0, Red Hat Update Infrastructure (RHUI) is adopted instead of the license authentication method using subscription (RHN).
Therefore, there is no problem even if valid subscriptions are not displayed or registered in the execution results such as [subscription - manager list - available].
In addition, it is not necessary for customers to register their subscriptions.
If you are connected to a common function gateway and you can connect to the Internet, yum and license authentication can be executed.
Regarding verification of license authentication, if [yum repolist all] command etc. can be executed normally, it can be confirmed that license authentication is completed.