FSMO is Flexible Single Master Operations, There are five FSMO roles:
* PDC emulator (one per domain): It permits Windows Server 2003 to perform as a Windows NT primary domain controller (PDC), and it not only offers replication support for Windows NT-based backup domain controllers (BDCs), but also helps with time and group policy synchronization.
* Infrastructure master (one per domain): It is responsible for updating the group-to-user references every time the members of groups alter or obtain new names.
* Relative ID (RID) master (one per domain): It makes sure that every object formed has a unique identification number.
* Schema master (one per forest): It is responsible for maintaining and modifying the Active Directory schema.
* Domain naming master (one per forest): It is responsible for the addition and deletion of domains in a forest.
Now the real thing is which servers hold these roles in an Active Directory forest?
To find the PDC emulator, the infrastructure master, and the RID master, follows these steps:
1. Go to Start | Administrative Tools | Active Directory Users and Computers.
2. Right-click the domain, and select Operations Master.
The resultant three tabs will explain you which server holds each respective role.
To find the schema master, follow these steps:
1. Go to Start | Run.
2. Enter regsvr32 schmmgmt.dll in the Open text box, and click OK.
3. Go to Start | Run.
4. Enter mmc in the Open text box, and click OK.
5. Go to File | Add/Remove Snap-In, and click Add.
6. Click Active Directory Schema, click Add, click Close, and click OK.
7. Right-click Active Directory Schema, and select Operations Master from the shortcut menu.
To find the domain naming master, follow these steps:
1. Go to Start | Administrative Tools | Active Directory Domains And Trusts.
2. Right-click Active Directory Domains And Trusts, and select Operations Master from the list.
Each option features a modify button, which allows you to move the role to another domain controller.
* PDC emulator (one per domain): It permits Windows Server 2003 to perform as a Windows NT primary domain controller (PDC), and it not only offers replication support for Windows NT-based backup domain controllers (BDCs), but also helps with time and group policy synchronization.
* Infrastructure master (one per domain): It is responsible for updating the group-to-user references every time the members of groups alter or obtain new names.
* Relative ID (RID) master (one per domain): It makes sure that every object formed has a unique identification number.
* Schema master (one per forest): It is responsible for maintaining and modifying the Active Directory schema.
* Domain naming master (one per forest): It is responsible for the addition and deletion of domains in a forest.
Now the real thing is which servers hold these roles in an Active Directory forest?
To find the PDC emulator, the infrastructure master, and the RID master, follows these steps:
1. Go to Start | Administrative Tools | Active Directory Users and Computers.
2. Right-click the domain, and select Operations Master.
The resultant three tabs will explain you which server holds each respective role.
To find the schema master, follow these steps:
1. Go to Start | Run.
2. Enter regsvr32 schmmgmt.dll in the Open text box, and click OK.
3. Go to Start | Run.
4. Enter mmc in the Open text box, and click OK.
5. Go to File | Add/Remove Snap-In, and click Add.
6. Click Active Directory Schema, click Add, click Close, and click OK.
7. Right-click Active Directory Schema, and select Operations Master from the shortcut menu.
To find the domain naming master, follow these steps:
1. Go to Start | Administrative Tools | Active Directory Domains And Trusts.
2. Right-click Active Directory Domains And Trusts, and select Operations Master from the list.
Each option features a modify button, which allows you to move the role to another domain controller.
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