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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.
Log in to your OS as root.
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.
Make sure that the machine can reach the Internet.
ping
www.cloudstack.org
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.
Install NTP
On RHEL or CentOS:
yum
install
ntp
On Ubuntu:
apt-get
install
openntpd
Repeat all of these steps on every hypervisor host.
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2.5.1. Hypervisor Host Installation Overview
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2.5.3. Install and Configure libvirt