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2.5.2. Prepare the Operating System

The OS of the Host must be prepared to host the CloudStack Agent and run KVM instances.
  1. Log in to your OS as root.
  2. Check for a fully qualified hostname.
    hostname --fqdn
    This should return a fully qualified hostname such as "kvm1.lab.example.org". If it does not, edit /etc/hosts so that it does.
  3. Make sure that the machine can reach the Internet.
    ping www.cloudstack.org
  4. Turn on NTP for time synchronization.

    Note

    NTP is required to synchronize the clocks of the servers in your cloud. Unsynchronized clocks can cause unexpected problems.
    1. Install NTP
      On RHEL or CentOS:
      yum install ntp
      On Ubuntu:
      apt-get install openntpd
  5. Repeat all of these steps on every hypervisor host.