openvpn client centos7 requires dev >= 3.3.2-5

You seem to be running CentOS 7, but you have EPEL6's repository configuration. You should be using EPEL7 with CentOS 7. To fix: yum remove epel-release yum install epel-release If that does not work, try yum clean all then yum install openvpn The latter should work.