This section describes the different options for installing Quantum. Regardless of how it is installed, a Quantum installation provides two executables:
quantum-server : a daemon that implements the Quantum virtual network service. If running from packages, an init script should be installed (e.g., /etc/init.d/quantum-server) for starting/stopping the service and logs are sent to /var/log/quantum/quantum-server.log .
quantum : a CLI utility for manually driving the Quantum API (note: in most common use cases, the Quantum API is primarily driven by another service, for example OpenStack Nova, and this CLI is used only for simple testing or troubleshooting).
Quantum has two configuration files quantum.conf and plugins.ini . The location of these files, referred to as $QUANTUM_CONF_DIR in text below, depends on the installation option chosen and is described below.

