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This post explains how to find out Domain Controllers
handling FSMO roles using command line tool NETDOM. In Active Directory domain
environment, particular Domain Controllers will be handling FSMO (Flexible
Single Master Operations) or Operations Master roles. As I have explained in my
earlier post, there are 5 FSMO roles handled by specific Domain Controllers in
the forest.
The five FSMO roles are:
- Schema master – One per forest
- Domain naming master – One per forest
- RID master – One for each domain
- PDC - One for each domain
- Infrastructure master - One for each domain
You can read more about 5 FSMO categories here.
To start with NETDOM tools you have to install Microsoft
Support Tools on your Windows Server 2003 Operating System. But NETDOM will be
installed by default on Windows Server 2008 and Windows Server 2008 R2. Read more details about installing Support Tools here.
Open command prompt and type below command:
netdom query /domain:YourDomain FSMO
Where, replace ‘YourDomain’ with your domain name. See an example
below:
C:\>netdom
query /domain:test FSMO
Schema
owner srv1.test.com
Domain role
owner srv1.test.com
PDC
role srv1.test.com
RID pool
manager srv1.test.com
Infrastructure
owner srv1.test.com
The command
completed successfully.
In this example, my domain name is ‘TEST’, and I have only
one Domain Controller 'srv1' in the forest, therefore all the 5 FSMO roles are
handled by a single Domain Controller.
