Cobbler is a provisioning (installation) and update server. It supports deployments via PXE (network booting), virtualization (Xen, QEMU/KVM, or VMware), and re-installs of existing Linux systems. The latter two features are enabled by usage of ‘Koan’ on the remote system. Update server features include yum mirroring and integration of those mirrors with automated installation files. Cobbler has a command line interface, WebUI, and extensive Python and XML-RPC APIs for integration with external scripts and applications.