I currently work for an organization that uses Windows Servers 2008 R2 for web server functionality such as Drupal hosting and am looking at alternatives to Windows Server. I like Zentyal, I have worked with the Community version off and on for several years. But much of what Zentyal offers in the commercial product appears to be overkill for our needs, plus our tech staff will say that the cost of Zentyal approaches or surpasses our Windows Server licensing cost over a period of two or more years. Is it feasible to use the Community Edition for a public accessible Drupal web site? Technically it is, but I would like to better understand any licensing issues that may arise or other issues that may arise. For example, I know that the Community edition doesn't offer the security updates.