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Windows 2000 Deployment Conference. Windows 2000 Active Directory Organizational Unit and Group Policy Planning Adam Gordon MCS Senior Consultant Microsoft Corporation. Agenda. OU concepts OU planning & design principles OU for delegation OU for Group Policy
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Windows 2000 Deployment Conference Windows 2000 Active Directory Organizational Unit and Group Policy PlanningAdam GordonMCS Senior ConsultantMicrosoft Corporation
Agenda • OU concepts • OU planning & design principles • OU for delegation • OU for Group Policy • OU for publishing (and hiding) directory objects • OU design exercise
Forest Maggipharm.com Bioquest.com rsrch.bioquest.com sales.bioquest.com dev.bioquest.com What Is an Organization Unit? • A container inside a domain • The element of hierarchical structure within the domain
OUs vs. Domains OUs are easily changed • Moved, renamed, deleted • Within a domain, objects move easily between Ous • Less impact on performance
Domains vs. OUs • Replication Boundary • Boundary for Security Polices and Domain Administrators • Rights intrinsic to Domain Admins
OUs: What Are They Good For • Delegating Administration • Group Policies • Organizing Published Objects in the directory
OU Planning Forest plan • Create an OU plan for each domain Domain plan OU plan Site topology
OU PlanningMethodology Forest plan Delegate Administration Domain plan Apply Group Policy OU plan Site topology Organize Objects
OU Design Principles • Keep it simple • Think supportability • Know your customer’s organizational and political boundaries • Detach the user from the workstation • Abstract the service from the server
Current Environment Analysis • Logon Scripts • “Functional” Groups (ifmember) • Current Administrative Boundaries • Current Domain Infrastructure • User Domains and Resource Domains: why are they there? • Users & Workstations • Restricted Labs, Kiosks, Factory Floors • Elevated Special Apps and Devices
OUs for Delegation • You can assign permissions to directory objects on a per-attribute basis • Use OUs to “group” objects with similar needs for administrative control • Use Administrative Delegation to reduce the number of Domain Admins • Like NT 4 User and Resource Domains…only better
Class-based Delegation • Delegate administrative control on a per-class basis for each OU: • Users & Groups • Computers • Note: Workstations and Member Servers are both “Computers” • Domain Controllers are a distinct class in their own OU • Folders • Printers
Attribute-based Delegation • You can also assign rights to specific attributes of an object class • Example: Telecom Department
Medicine Law Engineering ace (ENG Admins, Full Control) Civil Electrical ace (EE Admins, FC/Groups) ace (EE Admins, FC/Computers) OU Delegation Illustrated domain.edu
Delegation Made Easy • Use the Delegation of Control Wizard • A demo…
ACEs can apply to specific attributes ACE ACL DirectoryObject Delegation Made Hard • Directly modify object ACLs • Object Access Control • Go to chalk talk to discuss details
OU PlanningApply Group Policy • Group policy is used to control desktop configurations • Applied to Users and Computers • Associated with Sites, Domains, or Organizational Units • Create OUs to apply unique policy • Filter application of policy using access control
Features Benefits IntelliMirror User data management Increased protection and availability of people’s data “My Documents follow me!” Software installation & maintenance Increased availability of the applications that people need “My Applications follow me!” User settings management Increased computer availability “My Personal Settings follow me!” Remote OS installation Fast recovery, setup, (re)configuration of computer and operating system Change And Configuration Management
Features Technology used IntelliMirror User data management Active Directory, Group Policy, Offline Files, Synchronization Manager, Enhanced Shell Functionality, Disk Quotas Software installation & maintenance Active Directory, Group Policy, Windows installer, Application Deployment Editor, Add/Remove Programs, Dfs User settings management Active Directory, Group Policy, Offline Files, Roaming User Profiles, Enhanced Shell Functionality Remote OS installation Active Directory, Group Policy, Remote install server, remote install capable workstation (NetPC, PC98, Boot Floppy) Change And Configuration Management
Features Technology Used Group Policy IntelliMirror User Document Management Active Directory, Group Policy, Offline Folders (CSC), Synchronization Manager, Enhanced Shell Functionality, Disk Quotas Group Policy Software Installation Active Directory, Group Policy, Windows installer, Software installer snap-in, Add/Remove Programs, Dfs Group Policy User Settings Management Active Directory, Group Policy, Offline Folders (CSC), Roaming User Profiles, Enhanced Shell Functionality Group Policy Remote OS Installation Active Directory, Group Policy, Remote install server, remote install capable workstation (NetPC, PC98, Boot Floppy) Change And Configuration ManagementTechnologies
What Is Group Policy? Technology that enables you to specify requirements for your users’ environment and then rely on Windows 2000 to continually enforce them
What Is Group Policy? • “Sales department will have Office 2000” • “Disable logoff from Start Menu for all Receptionist” • “Audit all failed logon attempts for all Computers in the Atlanta area, in the Peachtree office”
Group Policy Requires… • Windows 2000 Active Directory • Windows 2000 Professional clients • No support for Windows NT 4.0 or earlier • No support for Windows 9x or earlier
Administrative Templates Registry-based policy settings Security Options for local, domain, and network security Software Installation Central management of software installation Scripts Startup, shutdown, logon, and logoff scripts Folder Redirection Store users’ folders on the network What Can You Do With Group Policy?
Where Does Group Policy Live? • Within group policy objects (GPOs) • Created within a domain • Linked to any number of sites, domains, and organizational units (SDOUs) • Multiple GPOs can be linked to a single SDOU
Applies Computer Settings from Group Policies Startup Scripts Run Applies User Settings from Group Policies Logon Scripts Run When Does Group Policy Get Applied? Computer Starts User Logs On …and at periodic intervals (more on this later)
Where Does My Policy Come From? • Site, Domain, OU hierarchy • Policy is inherited • “Closer” settings override farther” ones Site 1 Domain 2 3 OU
Modifying Inheritance • No Override prevents child containers from overriding policies set at higher levels • Block Inheritance prevents inheritance of all policies from parent containers • Highest No Override takes precedence over lower No Overrides • No Override takes precedence over Block Inheritance
What If An SDOU Is Linked To Multiple GPOs? • Higher GPOs override lower GPOs • GPOs are processed in the reverse order listed on the tab
What If I Don’t Want Everyone InAn OU To Be Affected By A GPO? • You cannot link a GPO to a security group • You can “filter” GPOs by changing the default permissions on the GPO, using security groups • You need the Read and Apply Group Policy ACEs to have a GPO apply • You need Read and Write in order to read or modify a GPO
Default GPO Permissions • Authenticated Users • Read • Apply Group Policy • Local System, Domain Admins, Enterprise Admins • All permissionsexcept AGP
Delegate control… Add members to a Group Move... Find…. New All Tasks View New Window from Here Delete Rename Refresh Export List… Properties Help dsa - [Active Directory Users and Computers] Console Window Help Active View Active Directory Samerica1.nwtra. Builtin Computers Domain Contr Ohio Properties Creating A Domain Or OU GPO New Properties
Creating A Site GPO • Use Active Directory Sites and Services • You must be a member of Enterprise Admins • By default, a site GPO is stored in the enterprise root domain • This may be altered at creation time, by changing the DC that the ADS&S snap-in is using and then creating a new GPO
Disabling A GPO • You can disable a GPO or just the User or Computer Settings nodes
Deleting A GPO • “Deleting” a GPO from an SDOU gives you a choice between • Unlinking the GPO from the SDOU • Permanently deleting the GPO
Registry-Based Policy Settings Ignore Implement Do not implement, remove
Administrative Templates • Framework for defining registry-based policies • Text file with .adm extension • Windows 2000 ships with system.adm and inetres.adm
Startup/Shutdown Computer Scripts Computer Configuration Startup/Shutdown User Configuration User Logon/Logoff Logon/Logoff Script Settings • You can assign multiple scripts and set the processing order • Default timeout is 10 minutes • Computer Configuration\Administrative Templates\System\Logon • “Maximum wait time for Group Policy scripts”
Account Policies Configure password, account, and Kerberos policies (domain only) Local Policies Configure auditing, user rights, and security options Event Log Configure settings for application logs, system logs, and security logs Restricted Group Configure group memberships for security sensitive groups System Services Configure security and startup settings for services running on a computer Registry Configure security on registry keys File System Configure security on specific file paths Public Key Policies Configure encrypted data recovery agents, domain roots, trusted certificate authorities IP Security Policies Configure IP security on a network Security Policy Settings