NethServer

NethServer is an operating system for Linux enthusiasts, designed for small offices and medium enterprises. Based on CentOS, the product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.

A comprehensive web-based user interface simplifies common administration tasks and enables single-click installation of several pre-configured modules.Documentation / Demo