"SME Server is for anyone who has a small to medium sized company: SME Server is designed to be an "install and forget" server. It becomes the hidden box that simply does it all. It features automatic security updates, backups, user and group management. It can host the office email, run a Windows domain and offer file- and print-server services with Samba (Windows file-sharing). File-sharing can also be offered by an ftp or http (web) service. DNS management and website/intranet hosting as well as dynamic DNS client support is included. SME Server can offer a Windows VPN (PPTP) service or, if you prefer, OpenVPN. Content filtering and virus-scanning is provided by web- and smtp-proxies. All these services are simply and easily configured via a web interface.
"SME Server is configurable as a gateway, file-server or both. If you need a bigger setup, then you could use a set of SME Servers variously as a firewall and router, and as a domain controller (PDC), and as a domain member file-server. But, from a security "best practice" point of view, you should avoid offering network services on a firewall machine."
