# Domain Controllers

A domain controller is a server with the AD DS (Active Directory Domain Service) server role installed that has specifically been promotted to a domain controller

![DC high representation](/files/-M0b2o-ll3cdvjdadDJy)

a DC :

* Host a copy of the AD DS directory store
* Provide authentication and authorization services
* Replicate updates to other domain controllers in the domain and forest
* allow administrative access to manage user accounts and network ressources


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