ClearOS is a modular operating system that will run on dedicated hardware or in your virtual environment in your home, office, or datacenter as:
ClearOS is modular and allows for both consolidation and synergy of services. For example, a 20-person office using ClearOS as a dedicated VPN gateway and other gateway services can be more lightweight, use less energy, become easier to manage than compared to an office deployment of multiple pieces of hardware and software to provide VPN, Intrusion Detection, Content Filtering, Protocol Filtering and Antivirus. In this scenario, we are able to share the usernames and passwords among these various systems which provides ease of management and ease of use for users. They won't have to remember different usernames or passwords for both the VPN and the Content filter, for example. And when they change their password, it affects all services.
ClearOS further extends this ease of use by working well with other ClearOS servers in this way and by also working with other third party directories and services in a similar fashion.