m23 is a software deployment system for Debian GNU/Linux servers which allows to install and administer Linux clients via network. It can partition and format clients and install Debian, (K/X)Ubuntu, Linux Mint, Fedora, OpenSuse, elementary OS and CentOS operating systems on virtual and physical clients. Group functions allow the comfortable update and installation of further packages during operation. Mass installation functions simplify the administration chores. m23 has a web interface. Backu