This document discusses tools for managing large scale computing environments: Cobbler, Puppet, and Func. Cobbler is a provisioning system that automates OS installation and configuration. Puppet is a configuration management tool that defines system configurations and ensures consistency. Func provides a Python API to manage systems, allowing them to be treated as Python objects. It includes modules to control services, run commands, and integrate with monitoring tools like Nagios. These tools help reduce complexity and enable consistent configuration of large numbers of systems.