Spacewalk

Spacewalk is an open source configuration management solution that was originally developed by Red Hat. The first stable version of Spacewalk was released in 2008. Like Red Hat Network Satellite, it centralises the following functions: monitoring, hardware and software inventory management, and configuration file distribution.

Spacewalk can also provide provisioning, controls and Xen hypervisor management.
This veritable centralised console makes it possible to perform global updates across an entire IT environment and to track the progress of those updates with complete granularity.
It supports several OSs, chief among which are Fedora, Centos, Suse and Debian.
It was designed for scalability. Spacewalk's proxy nodes provide for a multi-site cache of packets and configuration files, in this way optimising update and remote distribution operations on geographically distant infrastructures.