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Installation Prerequisites

The installation instructions for the {ProductName} server assume that you already have the following in place:

Red Hat Enterprise Linux 7.2 or higher or Red Hat Enterprise Atomic Host 7.2 or higher. For installation instructions, refer to the Red Hat Enterprise Linux installation guide.
{product-title} 4.2 installed. For installation instructions, refer to the Red Hat CloudForms installation guide.
Docker version 1.8 or higher.

Installing and Configuring Docker

Register your Linux machine and add the following repositories for Docker support.

subscription-manager register --username=<rhnuser> --password=<pwd>
subscription-manager list --available
subscription-manager attach --pool=<pool_id>
subscription-manager repos --enable=rhel-7-server-extras-rpms

Install Docker and the required dependencies.
```
yum install docker
```
Start the Docker service.
```
systemctl start docker
```
Enable the Docker service.
```
systemctl enable docker
```