Information Assurance Directorate: NSA Community Gold Standard Technical Guidanc

In order to have any sort of control over your network, you first need to know where everything is. This milestone and the next focus primarily on gathering information about your network (although the points to consider may prompt you to investigate making network changes). Note that, depending on your network, it may be easier to implement Milestones 2 through 5 first for the infrastructure and then for the endpoint devices, instead of trying to do everything at once.