Operation Masters / FSMO Roles in Hindi/Urdu_Part1

Operation Masters / FSMO Roles:
We have 5 masters Roles.

Forest-wide operations master roles
The following roles must appear atleast once in every forest:
1) Schema Master.
2) Domain Naming Master.

Domain -wide operations master roles:
The following roles must appear atleast once in every domain of the forest:

3) RID Pole Manager.
4) PDC Emulator (Primary Domain Controller).
5) Infrastructure Master.

• On a domain level, the roles are unique.
• At all times, a domain of a forest can have only one RID master, PDC emulator master, and infrastructure master.

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1) Schema Master:

Any update or modification done to the schema must go via the schema master domain controller. To make such updates / modification to the schema of a forest, an access has be established with the schema master.

Responsible of Schema updates/modification in a forest.

There can be only one schema master in the entire forest.
Writable Schema only on one DC.
All other DC’s hav onl read only Schema.

2) Domain Naming Master:
The domain controller holding the domain naming master role exclusively controls the addition or removal of domains in the forest.
There can be only one domain naming master in the entire forest.

3) RID Master:
• Responsible of the uniquness of the object.
• Alot a pool of RID to all DC in a domain.
RID= Domain Name+ SID techlyncs.

RID is a unique ID that is assigned to the objects created. Domain Controller that has RID Master role distributes pool of RIDs to all other Domain Controllers. Domain Controller will not renew RID pool if RID Pool Master Domain Controller is not available.

It is the task of RID master to allot sequences of relative IDs to each of the (numerous) domain controllers in its domain.When a domain controller creates a user, group, or computer object, a unique security ID (SID) is assigned to the object. The SID contains two elements:
• One is the domain SID (which is the same name for all SIDs that’s created in a domain)
• And the other is an RID, which is unique for each SID created in the domain.
4) PDC Emulator:
As specified earlier, all the roles are important but PDC is a core and most important role for any domain. Domain Controller that has PDC role should be available 24x7x365.
Password synchronization.
It is used to keep track of wrong password entered by user. It piles up count of wrong password. In addition to that, it also receives an update of user and computer password changed on another Domain Controller.

Updating/replicating Password changes – Ensuring that any password resets are replicated quickly to the other domain controllers in the domain.
• Time Synchronization.

PDC is used to sync time between Domain Controllers and between Domain Controllers and other Computers.
Acts as the primary time source for the domain – All the machines in the domain synchronize time with the PDC emulator.
in order to ensure consistency, password changes from client computers must be replicated and updated to all domain controllers throughout the domain. And the PDC emulator can be configured to synchronize with an external time source.Provides consistency in password experience for users across sites.
• Managing the Group Policies configured.
5) Infrastructure Master
Infrastructure Master Role is responsible for updating group membership updates and other references of objects from one domain to another domain. It is required for multi domain environment and not for single domain environment.

The Infrastructure Master is useful in cross-domain reference. A user in one domain can access resource in another domain, if there is a trust established.In that case, a security group or a distribution group can also be created, comprising users of different domains. After creating such a group, suppose that an attribute like ‘Last Name’ of a user object is changed. The same user object is still referenced in a group which is in another domain. The Infrastructure Master role validates these changes and keeps the membership updated.

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