Software Requirements
On each of your hosts:
yum and rpm (RHEL/CentOS/Oracle Linux)
zypper and php_curl (SLES)
apt (Debian/Ubuntu)
scp, curl, unzip, tar, and wget
OpenSSL (v1.01, build 16 or later)
Python
For CentOS 6: Python 2.6.x
For SLES 11: Python 2.6.x
For SLES 12: Python 2.7.x
For CentOS 7, Ubuntu 12, Ubuntu 14, and Debian 7: Python 2.7.x