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I used the Microsoft virtual lab (go to the very last link, "Using Dynamic Access Control to Automatically and Centrally Secure Data"). I'll walk you through the process of implementing CAPs, including notes about important things to remember and some troubleshooting. Of course, I raised the difficulty level a couple of notches by implementing DAC in a multi-domain forest, where the root domain is a Windows 2003 forest functional-level domain but has Windows Server 2008, Windows Server 2003 and Windows Server 2008 R2 domain controllers, only one of which is physical. Even with virtual labs and demos, it's easy to run into trouble spots. Other additions to Windows Server 2012 include automatic Rights Management Services (RMS) extensibility to encrypt non-Microsoft files and access-denied assistance: When access to a remote file is denied, Windows Server 2012 provides additional information to the user to assist in problem resolution and reduce calls to the IT help desk.īased on my research and work in my lab to try to figure this out, it's pretty clear that there isn't a lot of documentation, and DAC is a multi-headed beast that's somewhat difficult to understand. DAC adds that missing component, making it "claims-aware." File Classification Infrastructure (FCI), introduced in Windows Server 2008 R2 and Windows 7, allowed classification of data but without access control. Define basic attributes of an employee such as job title and department.Ĭentral Access Policies (CAPs) now allow common management of all access policies via Active Directory and can be implemented across forests. (Note: Security Groups still work just fine in Windows Server 2012 and with DAC implemented.) Figure 1. DAC also uses conditional expressions via Global Object Access Auditing. The various attributes in User properties are used for these expressions such as the Department attribute (see Figure 1).
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This allows a file resource, for example, to be limited to members of the sales department who reside in Canada.
#You need to add the active directory domain services role to a windows server 2012 r2 system windows 7#
Windows Server 2012 also supports conditional expressions, which enhance permissions management and auditing.ĭAC uses enhanced security descriptors introduced in Windows Server 2008 R2 and Windows 7 to allow conditional expressions in user and device claims and resource properties. Among them is new Kerberos support for user claims and device authorization, implemented through Group Policy, which I'll discuss later on. Microsoft identifies several feature enhancements in Windows Server 2012 to improve authorization management. I recall one company I worked with that said its proliferation of security groups became so difficult to manage that it didn't know who had domain admin rights - and it was afraid to fix the situation because the whole infrastructure might come unraveled. Many organizations have a complex web of groups and nested groups, many of which they've forgotten about or ignored. As a result, I've spent a great amount of time exploring DAC, and I'll explain what you need to know to start implementing it. The most obvious benefit to Active Directory admins is that it implements security without using security groups. However, DAC will become an important part of any Windows enterprise in the future for a number of reasons. As a result, it will take time before many enterprises implement DAC widely due to the complexity and planning it requires. DAC does this by providing more flexibility in how files are classified, secured, accessed, and governed, based on various attributes and conditions applied within Active Directory.ĭespite these major improvements in how the new Windows Server can let you implement policies, DAC requires extensive changes, as noted in Redmond Editor Jeffrey Schwartz's January 2013 cover story, " Group Control". Microsoft has identified Dynamic Access Control (DAC) as one of the most important new features in Windows Server 2012 because it's designed to provide better security, risk-management, and auditing policies in Active Directory by enabling more granular methods of authorization and authentication.