PowerDNS Installation

To prepare a couple of small virtual servers with CentOS 6/7, 512MB Ram, 10GB HDD, you should have at least 2 DNS servers in your cluster.

Decide which dns server is going to be the master.

CentOS no longer has PowerDNS in it's base repo, however it's maintained in the Extra Packages for Enterprise Linux (EPEL) repo  http://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F