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　　RMS (Rights Management Services, Rights Management Services) as early as in Windows 2003 already exist, in order to provide maximum security for the information and data protection technology enterprises.
　　In the Windows server 2016, RMS service has been strengthened, its operating system which has been in and was officially named the AD RMS (Active Directory Rights Management Services) built as a regular service. It cooperates with AD RMS-enabled application to trees to prevent the use of the digital information in the case of unauthorized. AD RMS applications that require protection organize sensitive and proprietary information. AD RMS policy protection provided by permanent use of the information, thereby enhancing the organization's security policies, regardless of where the information is moved, permanent usage policies remain with the information together.
　　2, AD RMS cluster Overview
　　AD RMS cluster is defined as a single server to run AD RMS or AD RMS shared clients from AD RMS server and issues a set of authorization requests. When the first AD RMS server provided in the Active Directory forest, the server becomes AD RMS cluster, more servers may be provided at any time and add it to the AD RMS cluster.
　　There are two types of AD RMS Cluster: cluster root cluster and authorization only.
　　A server installed in the first AD RMS root cluster is commonly referred to. Domain root cluster active directory service process (AD DS) which it is installed, all the certificates and the authorization request field. For complex environments, the root cluster, you can also create only authorized cluster. However, it is recommended to use a root cluster, then more join this AD RMS server in the cluster.
　　3, AD RMS client Introduction
　　AD RMS client with Windows 10 and Windows server 2016 together with the operating system. If you use Windows xp, Windows 2000 or Windows server 2003 as a client operating system, you can download a compatible version of the AD RMS client from microsoft download center.
　　4, AD RMS environment Why do you need IIS?
　　Because the client is a communication by HTTP or HTTPS protocol with AD RMS server, the deployment server must be installed AD RMS IIS.
　　5, AD RMS environment Why do you need a database?
　　AD RMS database for storing information and configuration strategies. You can use SQL Server, you can use the built-in AD RMS database.