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MCSA Guide to Installing and Configuring Windows Server 2012/R2, Exam 70-410 Chapter 4 Managing OUs and Active Directory Accounts Objectives Work with organizational units Manage user accounts Manage group accounts Work...
MCSA Guide to Installing and Configuring Windows Server 2012/R2, Exam 70-410 Chapter 4 Managing OUs and Active Directory Accounts Objectives Work with organizational units Manage user accounts Manage group accounts Work with computer accounts Automate account management MCSA Guide to Installing and Configuring Windows Server 201 2 2/R2, Exam 70-410 © Cengage Learning 2015 Working with Organizational Units Benefits of using OUs: – Create hierarchical structures based on an organizational chart to allow easy resource access. – Delegation of administrative authority – Group users and computers for the purposes of assigning administrative and security policies. MCSA Guide to Installing and Configuring Windows Server 201 3 2/R2, Exam 70-410 © Cengage Learning 2015 Figure 4-1 Single-level and multilevel OU structures MCSA Guide to Installing and Configuring Windo 4 ws Server 2012/R2, Exam 70-410 © Cengage Learning 2015 OU Delegation of Control Delegation of control - a person with higher security privileges assigns authority to a person of lesser security privileges to perform certain tasks. Commonly delegated tasks include – Create, delete, and manager user accounts – Reset user passwords and force password change at next logon – Read all user information – Create, delete, and manage groups – Modify the membership of a group MCSA Guide to Installing and Configuring Windows Server 5 © Cengage Learning 2015 2012/R2, Exam 70-410 Permission Inheritance in OUs Permission inheritance defines how permissions are transmitted from a parent object to a child object All objects in AD are child objects of the domain. By default, permissions applied to the parent OU with the Delegation of Control Wizard are inherited by all child objects of that OU MCSA Guide to Installing and Configuring Windows Server 6 © Cengage Learning 2015 2012/R2, Exam 70-410 Managing User Accounts User accounts have two main functions in AD: – Provide a method for user authentication to the network – Provide detailed information about a user Windows machines not part of a domain store accounts in the Security Accounts Manager (SAM) database on the local computer User accounts created in AD are referred to as “domain user accounts” – These accounts can usually log on to any computer that’s in the Active Directory forest. MCSA Guide to Installing and Configuring Windows Server 7 © Cengage Learning 2015 2012/R2, Exam 70-410 Managing User Accounts The following guidelines apply to the built-in Administrator account: – Local administrator account has full access to all aspects of a computer, while domain administrator account has full access to all aspects of the domain. – The domain administrator account in the forest root domain has full access to all aspects of the forest. – Administrator account should be renamed and given a strong password – Administrator account should only be used while performing administrative operations. – Administrator account can be renamed or disabled but not deleted. MCSA Guide to Installing and Configuring Windows Server 8 © Cengage Learning 2015 2012/R2, Exam 70-410 Managing User Accounts The following guidelines apply to the built-in Guest account – Guest account is disabled by default after install, and must be enabled before it can be used for log on. – Guest account can have a blank password. – Should be renamed if it is to be used. – Guest account has limited access to a computer or domain. MCSA Guide to Installing and Configuring Windows Server 9 © Cengage Learning 2015 2012/R2, Exam 70-410 Managing User Accounts When creating a user account in an AD domain, keep the following considerations in mind: – User accounts must be unique throughout the domain – Account names aren’t case sensitive, and can be from 1 to 20 characters. Can use letters, numbers, and special characters (with some exceptions). – Develop a standard naming convention. – By default, complex passwords are required and passwords are case sensitive. – By default, only a logon name is required to create a user account. MCSA Guide to Installing and Configuring Windows Server 10 © Cengage Learning 2015 2012/R2, Exam 70-410 Disabling User Accounts Reasons you might want to disable a user account – A user has left the company – The account is not ready to use – A user goes on extended leave. MCSA Guide to Installing and Configuring Windows Server 11 © Cengage Learning 2015 2012/R2, Exam 70-410 The General Tab Contains descriptive information about the account, but does not affect the user’s account logon, group memberships, rights, or permissions. Fields worth mentioning: – Display name - same as the CN when account is first created – E-mail - can be used to send an E-mail to the user using the default mail application – Web page - can contain a URL and allows you to open the specified URL by right-clicking the user account MCSA Guide to Installing and Configuring Windows Server 12 © Cengage Learning 2015 2012/R2, Exam 70-410 The Account Tab Contains the information that most affects a user’s logon to the domain – User logon name – Logon Hours – Log On To – Unlock account – Account options Store password using reversible encryption Smart card is required for interactive logon Account is sensitive and cannot be delegated – Account expires MCSA Guide to Installing and Configuring Windows Server 13 © Cengage Learning 2015 2012/R2, Exam 70-410 Figure 4-18 Setting logon hours MCSA Guide to Installing and Configuring Windo 14 ws Server 2012/R2, Exam 70-410 © Cengage Learning 2015 The Member of Tab Lists groups the user belongs to Can be used to change group memberships MCSA Guide to Installing and Configuring Windows Server 15 © Cengage Learning 2015 2012/R2, Exam 70-410 Using Contacts and Distribution Groups A contact is an Active Directory object that usually represents a person for informational purposes only. Most common use of a contact is for integration into Microsoft Exchange’s address book. A distribution group is used with Microsoft Exchange to send e-mails, but to several people at once. MCSA Guide to Installing and Configuring Windows Server 16 © Cengage Learning 2015 2012/R2, Exam 70-410 Managing Group Accounts Active Directory group objects are the main security principal administrators use to grant rights and permissions to users. Groups are easier to manage – Users with similar access requirements to resources can be made members of a group When a group is created in ADUC, aside from assigning a name, there are two other settings : – Group type – Group scope MCSA Guide to Installing and Configuring Windows Server 17 © Cengage Learning 2015 2012/R2, Exam 70-410 Group Types There are two group types: security and distribution A distribution group is used to group users together – Mainly for sending e-mails to several people at once with an AD integrated e-mail application, such as Microsoft Exchange Can have the following objects as members: – User accounts – Contacts – Other distribution groups – Security groups – Computers MCSA Guide to Installing and Configuring Windows Server 18 © Cengage Learning 2015 2012/R2, Exam 70-410 Group Types Security groups are the main AD object administrators use to manage network resource access and grant rights to users Can contain the same types of objects as distribution groups MCSA Guide to Installing and Configuring Windows Server 19 © Cengage Learning 2015 2012/R2, Exam 70-410 Group Scope Group scope determines the reach of a group’s application in a domain or a forest Three group scope options are possible in a Windows Server 2012 forest: – Domain local – Global – Universal A fourth scope called “local” applies only to groups created in the Security Account Manager (SAM) database of a member computer or stand-alone computer MCSA Guide to Installing and Configuring Windows Server 20 © Cengage Learning 2015 2012/R2, Exam 70-410 Domain Local Groups A domain local group is the main security principal recommended for assigning rights and permissions to domain resources. In a single domain environment, or when users from only one domain are assigned access to a resource, use AGDLP Role based Strategy – Accounts are made members of – Global groups, which are made members of – Domain Local groups, which are assigned – Permissions to resources MCSA Guide to Installing and Configuring Windows Server 21 © Cengage Learning 2015 2012/R2, Exam 70-410 MCSA Guide to Installing and Configuring Windows Server 22 © Cengage Learning 2015 2012/R2, Exam 70-410 Global Groups A global group is used mainly to group users from the same domain with similar access or rights requirements – Considered global because it can be made a member of a domain local group in any domain in the forest or trusted domains in other forests A common use is creating a global group for each department, location, or both MCSA Guide to Installing and Configuring Windows Server 23 © Cengage Learning 2015 2012/R2, Exam 70-410 Universal Groups A universal group can contain users from any domain in the forest and be assigned permission to resources in any domain in the forest. Universal groups can be a member of other universal groups or domain local groups from any domain in the forest. Universal groups’ membership information is stored only on global catalog servers. MCSA Guide to Installing and Configuring Windows Server 24 © Cengage Learning 2015 2012/R2, Exam 70-410 Local Groups A local group is created in the local SAM database on a member server or workstation or a stand-alone computer When a computer joins a domain, Windows changes the membership of two local groups automatically: – Administrators - Domain Admins global group is made a member – Users - Domain users global group is made a member Local groups can have the following account types as members: – Local user accounts – Domain user accounts and computer accounts from any domain in the forest – Domain local groups from the same domain – Global or universal groups from any domain in the forest MCSA Guide to Installing and Configuring Windows Server 25 © Cengage Learning 2015 2012/R2, Exam 70-410 Nesting Groups Nesting groups - making a group a member of another group. Usually used to group users who have similar roles but work in different departments. MCSA Guide to Installing and Configuring Windows Server 26 © Cengage Learning 2015 2012/R2, Exam 70-410 Creating Computer Accounts Computer accounts are created in Active Directory when a client computer becomes a member of a domain. A computer account is a security principal with an SID and a password and must authenticate to the domain Computer accounts are created in AD two ways: – A user changes the computer membership from Workgroup to Domain in the System Properties dialog box Joining the domain and account is created automatically – An administrator creates the account manually in Active Directory MCSA Guide to Installing and Configuring Windows Server 27 © Cengage Learning 2015 2012/R2, Exam 70-410 Figure 7-23 Creating a computer account MCSA Guide to Installing and Configuring Windo 28 ws Server 2012/R2, Exam 70-410 © Cengage Learning 2015 Managing Computer Accounts It may be necessary to reset a computer account – If the computer account has become unsynchronized with the domain controller MCSA Guide to Installing and Configuring Windows Server 29 © Cengage Learning 2015 2012/R2, Exam 70-410 Disabling Computer Accounts When a computer leaves the domain, its computer account is disabled automatically You might need to disable a computer account manually if the computer won’t be in contact with the domain controller for an extended period MCSA Guide to Installing and Configuring Windows Server 30 © Cengage Learning 2015 2012/R2, Exam 70-410 Summary OUs can be designed to mirror a company’s organizational chart OU permissions and permission inheritance work much the same way as they do in the file system User accounts provide a way for users to authenticate to the network and contain user information that can be used in a company directory ADUC and ADAC are GUI tools for creating and maintaining user accounts User templates facilitate creating users who have some attributes in common, such as group memberships MCSA Guide to Installing and Configuring Windows Server 201 31 2/R2, Exam 70-410 © Cengage Learning 2015 Summary This chapter covers the user account properties in the General, Account, Profile, and Member Of tabs. Groups are the main security principal used to grant rights and permission. There are three group scopes in AD: domain local, global, and universal. Computer that are domain members have computer accounts in AD. Computer accounts are created automatically when a computer joins a domain or manually by an administrator. MCSA Guide to Installing and Configuring Windows Server 201 32 2/R2, Exam 70-410 © Cengage Learning 2015