![]() ![]() If you want to modify the permissions on one of the service administrator groups or on any of its member accounts, you must modify the security descriptor on the AdminSDHolder object to ensure that it's applied consistently. This security descriptor is present on the AdminSDHolder object. This process ensures that any successful unauthorized attempt to modify the security descriptor on one of the default local accounts or groups is overwritten with the protected settings. A security descriptor is a data structure that contains security information that's associated with a protected object. Some of the default local accounts are protected by a background process that periodically checks and applies a specific security descriptor. The SIDs that are related to each of the default local accounts in Active Directory are described in the next sections. For more information, see Security principals.Ī security principal is represented by a unique security identifier (SID). ![]() A security principal includes objects such as user accounts, computer accounts, security groups, or the threads or processes that run in the security context of a user or computer account. A security principal is a directory object that's used to secure and manage Active Directory services that provide access to domain controller resources. On an Active Directory domain controller, each default local account is referred to as a security principal. For more information, see Active Directory security groups. Active Directory security groups collect user accounts, computer accounts, and other groups into manageable units. Active Directory User accounts and Computer accounts can represent a physical entity, such as a computer or person, or act as dedicated service accounts for some applications.Įach default local account is automatically assigned to a security group that's preconfigured with the appropriate rights and permissions to perform specific tasks. Active Directory accounts provide access to network resources. ![]() In Active Directory, administrators use default local accounts to manage domain and member servers directly and from dedicated administrative workstations. After a user’s credentials have been authenticated, the user is authorized to access the network, and domain resources based on the user’s explicitly assigned rights on the resource.Īudit the actions that are carried out on user accounts. A user account lets a user sign in to computers, networks, and domains with a unique identifier that can be authenticated by the computer, network, or domain.Īuthorize (grant or deny) access to resources. Multiple users aren't allowed to share one account. It's a best practice to assign each user to a single account to ensure maximum security. Let the domain represent, identify, and authenticate the identity of the user who's assigned to the account by using unique credentials (user name and password). The following sections describe the default local accounts and their use in Active Directory.ĭefault local accounts perform the following actions: The HelpAssistant account is installed when a Remote Assistance session is established. The default local accounts in the Users container include: Administrator, Guest, and KRBTGT. It's a best practice to keep the default local accounts in the User container and not attempt to move these accounts to, for example, a different organizational unit (OU). After the default local accounts are installed, they're stored in the Users container in Active Directory Users and Computers. You can assign rights and permissions to default local accounts on a particular domain controller, and only on that domain controller. They also have domain-wide access and are completely separate from the default local user accounts for a member or standalone server. These default local accounts have counterparts in Active Directory. Default local accounts in Active Directoryĭefault local accounts are built-in accounts that are created automatically when a Windows Server domain controller is installed and the domain is created. For more information, see Local accounts. It doesn't describe default local user accounts for a member, standalone server, or Windows client. This reference article describes the Windows Server default local accounts that are stored locally on the domain controller and used in Active Directory. In addition, you can create user accounts to meet the requirements of your organization. Windows Server operating systems are installed with default local accounts. Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016 ![]()
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