Tuesday, July 23, 2013

Roles of Active Directory

Flexible Single Master Operation Roles(FSMO Roles):-
  1. Names Master
  2. Schema Msater
  3. RID Master
  4. PDC Emulator
  5. Infrastructure Master
1.Naming Master:-
  • Check the Maintains the Uniqueness off the Domain Names in the Whole Forest.
  • It is Responsible for adding. Removing and renaming the domain names in the whole Forest.

2.Schema Master:-
  • Schema is a set of rules which is used to define the structure if AD.
  • Schema contains Definitions of all the objects which are stored in AD.
  • Schema is further classified into:
             - Classes
                         Classed is a Template which is used to create an objest
             -Attributes
                         Attributes are Properties of an object


3.RID Master:-

  • It assigns unique IDs (RIDs) to the objects which are created in the domain.
  • Allocates pool of Relative IDs (RIDs) to all domain controllers within a Domain.

4.PDC Emulator:-
  • Acts as a PDC for Windows NT 4.0 BDC’s in the domain
  • Processed all passwords updates for clients
  • Receives immediate updates from other domain controllers when a user’s password is changed
  • It Synchronizes time between the Domain controllers.
5.Infrastructure Master:-
  • Infrastructure Master Maintains and updates the Universal Group Membership information.
  • It is used for Inter-Domain Operations.

Global Catalog:-
  • A global catalog server is a domain controller. It is a master searchable database that contains information about every object in every domain in a forest.
  • The global catalog contains a complete replica of all objects in Active Directory for its host domain, and contains a partial replica of all objects in Active Directory for every other domain in the forest.

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