How to install Active Directory in Windows Server 2012

In this article, we will learn how to install Active Directory in Windows Server 2012 R2. Many people have worked with previous versions, running DCPROMO.EXE to install, but in 2012, Microsoft advises you not to use it anymore.

To continue the installation, follow the steps below.

Bước 1 - Vào “Server Manager” → Manage → Add Roles and Feature.

Step 2 - Click the Next button.

Step 3 - As this example is currently installing AAD, you will select "Role-based or feature based Installation" → Next.

Step 4 - Click "Select a server from the server pool", in case it is installed locally.

Step 5 - Check the box next to Active Directory Domain Services. A dialog box will appear explaining the additional services or features required to install the domains.

Step 6 - Click Add Features.

Step 7 - Check "Group Policy Management" → Next.

Step 8 - Click the "Next" button.

Step 9 - Click "Install".

The installation screen will appear now and you must wait until the installation process is complete.

Now that the DC installation is complete, you must configure it for your server.

Step 10 - Click on "Server Manager" → Open the Notifications Pane by selecting the Notifications icon at the top of the Server Manager. From the message associated with configuring AD DS (Active Directory Domain Services), click Promote this server to a domain controller.

Step 11 - Click "Add a new forest" → Insert your root domain name into the Root domain name field. In the case of this example, the root domain name will be named "example.com".

Step 12 - Select a Domain and Forest functional level. Once selected, enter the DSRM password in the password fields provided. DSRM password is used when starting the Domain Controller in recovery mode.

Step 13 - In the next screen that appears, there is a warning on the DNS Options tab, click OK and then select Next.

Step 14 - Enter the NETBIOS name and click "Next".

Step 15 - Select the location of the SYSVOL file, Log file and Database folders, then click Next.

Step 16 - Click "Install" and wait until it finishes. The server will restart several times.

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