My personal plan is to install an all-in-one to meet the needs of my small business. I need a domain controller configuration, and share files for local users, a external mail server with antivirus, proxy and web remote access, a web server with multiple domains (plan to use wordpress), a web proxy, set up a firewall secure, vpn server to remote users, vpn site-to-site, block of pages. This is my project, there is a training or how-tos to teach to set all these functions? If not there, I believe this scenario is to be an excellent case for how-tos.