Dorian is a grid service for the provisioning and management of grid users accounts. Dorian provides an integration point between external security domains and the grid, allowing accounts managed in external domains to be federated and managed in the grid. Dorian allows users to use their existing credentials (external to the grid) to authenticate to the grid. The purpose of this guide is to provide insight into the installation and administration of the Dorian. This guide assumes that you have already have a technical understanding of Dorian; for more information on the technical aspects of Dorian please consult the technical resources.