Controller node

Configure network interfaces

  1. Configure the first interface as the management interface:

    IP address:

    Network mask: (or /24)

    Default gateway:

  2. The provider interface uses a special configuration without an IP address assigned to it. Configure the second interface as the provider interface:

    Replace INTERFACE_NAME with the actual interface name. For example, eth1 or ens224.

  • Edit the /etc/sysconfig/network/ifcfg-INTERFACE_NAME file to contain the following:

  1. Reboot the system to activate the changes.

Configure name resolution

  1. Set the hostname of the node to controller.

  2. Edit the /etc/hosts file to contain the following:

    # controller       controller
    # compute1       compute1
    # block1       block1
    # object1       object1
    # object2       object2


    Some distributions add an extraneous entry in the /etc/hosts file that resolves the actual hostname to another loopback IP address such as You must comment out or remove this entry to prevent name resolution problems. Do not remove the entry.


    This guide includes host entries for optional services in order to reduce complexity should you choose to deploy them.