Each system must be registered with its own subscription in Red Hat subscription-manager. 

To be able to register a system requires a connection from the server to the internet (unless there is an RHEL Satellite setup in the LAN) and a valid subscription (contract) with Red Hat with a username and password.

subscription-manager

Subscription-manager comes pre-installed with the minimal installation.

 Issue the registration (example):

subscription-manager register

Enter username and password

Username: <your_subscription_username>
Password:  *******
The system has been registered with ID: d7076d65-ac ...

Login to the RedHat Portal and check the registered systems on https://access.redhat.com/management/systems

At this point the system is registered, but not yet attached to a subscription.  Attach to a subscription:

subscription-manager list

subscription-manager attach --auto

subscription-manager list

subscription-manager list --consumed

In the RedHat portal one should now see that the system is attached to a subscription. Systems registered with subscription-manager show up under Subscription management -> Units in Red Hat’s webportal.

Unregister subscription-manager

To detach a subscription & unregister:

subscription-manager remove --all

subscription-manager unregister

This action can also be issued in the Red Hat webportal, in case the system is already wiped.

Repositories

Now yum can be used to its full extent. By default, only the standard Red Hat repository is available. Additionally, the following repositories are required for some of the SKOOR Engine components and must be enabled for the registered system in the Red Hat webportal or from the command line:

Red Hat 7

subscription-manager repos --enable rhel-7-server-optional-rpms

subscription-manager repos --enable rhel-7-server-extras-rpms

subscription-manager repos --enable rhel-server-rhscl-7-rpms

The EPEL repository needs to be installed for certain components used by the SKOOR agent (smem). Refer to the following webpage to download the latest epel-release RPM file: http://fedoraproject.org/wiki/EPEL.

Then transfer the RPM file and install it using the following command:

yum install epel-release-latest-7.noarch.rpm

Finally, the nux-dextop repository is needed for EEM video functions. The RPM is provided by the SKOOR repository:

yum install nux-dextop-release