Active Directory Partitions

Active Directory Partitions or Active Directory Naming Contexts: A partition is a data structure within AD used to distinguish data for different replication purposes. Active Directory divides information into multiple partitions. Each domain controllers have a copy of the NTDS.DIT database file which contains a minimum of three NCs.

Schema NC: Contains the rules and definitions that are used to creating and modifying object classes and attributes within Active Directory. Information of this partition replicates to every domain controller in a forest.

Configuration NC: Contains information regarding the physical topology of the network. As well as other configuration data that must be replicated throughout the forest. This information flows to every domain controller within a forest.

Domain NC: Domain NC consists of user, computer, and other resource information for a particular Active Directory Domain. Information of this partition replicates to every domain controller within the domain only.

Application NC: Application partitions provide fine control. It helps administrators direct where information is relocated to a domain or forest. It results in greater flexibility and better control over replication performance. For Example:

ForestDNSZone is part of a forest. All domain controllers and DNS servers in a Forest receive a replica of this partition.

DomainDNSZone: are unique for each domain. All domain controllers that are DNS server in that domain receive a replica of this partition.

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PKI Lab Setup

Resource Forest Active Directory Domain Service – DC01 Root Certificate Authority (Offline) – RCA01 Issuing Certificate Authority – ICA01 Client Server – WS01 Account Forest ADC01 AWS01 ------------------------------------------------------------------------------------------------------------------------------------------------------ Step 1 – Installing the Domain Controller Step 2 – Installing the Root Certificate Authority Ø Install the AD CS Role on the server (RCA01) Ø Configure the AD CS Role ü Click – Configure Active Directory Certificate Service on the Destination Server ü Click Next – If you have logged in with Administration Account or Choose the Account which will be responsible for CA ü Select Role Service to configure – For my case I am selecting only Certification Authority ü Select Standalone CA – As this will be offline CA on a work group machine ü Select Root CA – As this will be the Root CA Server ü Create a new private key – Mandato

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