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For example, when a user logs into a computer which is part of a Windows domain, Active Directory checks the submitted username and password and determines whether the user is a system administrator or a non-admin user. [4]
Starting with Windows Server 2000, Active Directory is the Windows component in charge of maintaining that central database. [1] The concept of Windows domain is in contrast with that of a workgroup in which each computer maintains its own database of security principals.
The software and operating system used to run a domain controller usually consists of several key components shared across platforms.This includes the operating system (usually Windows Server or Linux), an LDAP service (Red Hat Directory Server, etc.), a network time service (ntpd, chrony, etc.), and a computer network authentication protocol (usually Kerberos). [4]
On Microsoft Servers, a domain controller (DC) is a server computer [1] [2] that responds to security authentication requests (logging in, etc.) within a Windows domain. [3] [4] A domain is a concept introduced in Windows NT whereby a user may be granted access to a number of computer resources with the use of a single username and password combination.
When the computers are joined into a domain (Active Directory or NT domain for instance), each computer is provided a unique Domain SID which is recomputed each time a computer enters a domain. This SID is similar to the machine SID.
AGDLP (an abbreviation of "account, global, domain local, permission") briefly summarizes Microsoft's recommendations for implementing role-based access controls (RBAC) using nested groups in a native-mode Active Directory (AD) domain: User and computer accounts are members of global groups that represent business roles, which are members of domain local groups that describe resource ...
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For example in Active Directory Kerberos is used in the authentication step, while LDAP is used in the authorization step. An example of such data model is the GLUE Schema, [ 26 ] which is used in a distributed information system based on LDAP that enable users, applications and services to discover which services exist in a Grid infrastructure ...