Dcpromo.exe is a GUI base wizard tool. By this tool we can add and remove “Active Directory” and other domain controllers.
My main domain server name is “vm102” and RODC server name is “vm103”.And the domain name is “xyz.com”.
Before starting rodc installation we must check that the forest functional level must be windows server 2003 or higher. If the forest functional level is windows server 2000 we must need to raise the functional level.
Raising forest functional level
Go to START button then Administrative Tools then click Active Directory Domains and Trusts.
On Active Directory Domains and Trusts dialog box right click on Active Directory Domains and Trusts [vm102.xyz.com] (Here vm102.xyz.com is my own AD server and domain.) click Raise Forest Functional Level then raise forest functional level to Windows Server 2003.
Deploying RODC in a member server
Before deploying RODC, it must be confirmed that the computer is to be a member of domain and the DNS & default gateway address are proper.
Click START button click Run.
In Run dialog box write dcpromo in open dropdown box and click Ok button.
Then Active Directory Domain Services Installation Wizard started.
Click Next button.
From Choose a Deployment Configuration box click on Existing Forest and add a domain controller to an existing domain radio button then click on next button.
In network credentials box check the “domain name” click on my current logon credentials radio button then click next button.
From select a domain box select the domain and click next button. (Note: Here I’ve only one domain so it is showing as a forest root domain.)
From select a site box click on default-first-site-name from sites box then click next button.
In additional domain controller options box click on read-only domain controller (RODC) check box and click on next button.
In delegation of RODC installation and administration box click next button.
In the Location for Database. Log Files. and SYSVOLE box click on next button.
In directory service restore mode administrator password box write same password in password and confirm password text box and click next button.
RODC installation started.
After completing installation click Finish from summary box. And click on restart button.