稳定性、可靠性、兼容性、高效率、可持续，五大标准;
recommend always using the stable version for production environments
http://puppetlabs.com/misc/download-options
http://yum.puppetlabs.com/el/6.4/products/x86_64/
rpm -ivh https://yum.puppetlabs.com/el/6/products/x86_64/puppetlabs-release-6-7.noarch.rpm【红帽ehwl6 puppet yumRepo】
http://www.wenzizone.com/category/system_service/cobbler[不错的运维小站]
