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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.
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]
Windows Server operating systems include it as a set of processes and services. [1] [2] Originally, only centralized domain management used Active Directory. However, it ultimately became an umbrella title for various directory-based identity-related services. [3] A domain controller is a server running the Active Directory Domain Services (AD ...
A domain controller is a Windows or Samba server that manages all security-related aspects between user and domain interactions, centralizing security and administration. A domain controller is generally suitable for networks with more than 10 PCs. A domain is a logical grouping of computers. The computers in a domain can share physical ...
Starting with Windows Server 2003, a DSRM password must be defined when the domain controller is promoted. Anyone with the password who has access to the domain controller can reboot the machine, copy and modify the Active Directory database, and reboot the server without leaving any trace of the activity.
Related topics: Domain controller, Flexible single master operation: Windows 2000 and later server versions Group Policy: Provides centralized management of user and computer settings in an Active Directory environment.
The PDC Emulator (Primary Domain Controller) - This role is the most used of all FSMO roles and has the widest range of functions. The domain controller that holds the PDC Emulator role is crucial in a mixed environment where Windows NT 4.0 BDCs are still present. This is because the PDC Emulator role emulates the functions of a Windows NT 4.0 PDC.
Another planned feature in Windows Vista would have provided a new domain-like networking setup known as a Castle, but this did not make it into the release. Castle would have made it possible to have an identification service, which provides user authentication, for all members on the network, without a centralized server.