> For the complete documentation index, see [llms.txt](https://d3ndr1t30x.gitbook.io/breaking-things-a-junior-pentesters-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://d3ndr1t30x.gitbook.io/breaking-things-a-junior-pentesters-guide/active-directory-theory/physical-components.md).

# Physical Components

### Domain Controller

* The brains / central point of an AD network
* Provides authentication and authorization services
* Replicates updates to other domain controllers in the domain and forest
* Allows administrative access to manage user accounts and network resources 

### AD DS Data Store

* Consists of the Ntds.dit file
* Is stored by default in %SystemRoot%\NTDS folder on all domain controllers
* Is accessible only through the domain controller processes and protocols