{"id":599,"date":"2023-11-13T17:54:43","date_gmt":"2023-11-13T11:54:43","guid":{"rendered":"https:\/\/bdwebit.com\/blog\/?p=599"},"modified":"2025-06-29T15:46:14","modified_gmt":"2025-06-29T09:46:14","slug":"how-to-add-secondary-domain-controller","status":"publish","type":"post","link":"https:\/\/bdwebit.com\/blog\/how-to-add-secondary-domain-controller\/","title":{"rendered":"How To Add Secondary Domain Controller Server 2019"},"content":{"rendered":"

Add Secondary Domain Controller of Active Directory (AD) management, ensuring the resilience and reliability of your network is paramount. One way to enhance the robustness of your AD infrastructure is by adding a secondary domain controller (DC). In this blog post, we will explore the significance of having a secondary DC and guide you through the process of adding one using PowerShell, Microsoft’s versatile scripting language.<\/p>\n

Understanding the Role of a Secondary Domain Controller:<\/h2>\n

A secondary domain controller serves as a backup to the primary domain<\/a> controller, distributing the load and providing redundancy in case the primary DC becomes unavailable. This redundancy is crucial for maintaining seamless operations. Ensuring uninterrupted access to resources, and enhancing the overall fault tolerance of your AD environment.<\/p>\n

Prerequisites:<\/strong>
\nBefore delving into the process, make sure you meet the following prerequisites:<\/p>\n

    \n
  1. Administrator Privileges:<\/strong>
    \nEnsure that you have administrative privileges on the server where you plan to add the secondary domain controller.<\/li>\n
  2. PowerShell and Remote Server Administration Tools (RSAT):<\/strong>
    \nPowerShell is a core component, but you may also need RSAT installed on your server to perform certain AD-related tasks. You can install RSAT by running the following PowerShell command:<\/li>\n<\/ol>\n

    powershell
    \nCopy code
    \nInstall-WindowsFeature RSAT-AD-Tools<\/p>\n

    Step-by-Step Guide to Adding a Secondary Domain Controller:<\/h3>\n

    Now, let’s walk through the system of adding a secondary domain controller using PowerShell.<\/p>\n

    Step 1: Open PowerShell with Administrator Privileges<\/strong>
    \nLaunch PowerShell with administrative privileges. Right-click on the PowerShell icon and choose “Run as Administrator” to ensure you have the necessary permissions.<\/p>\n

    Step 2: Import the Active Directory Module<\/strong>
    \nIf you haven’t already, import the Active Directory module using the following command:<\/p>\n

    powershell
    \nCopy code
    \nImport-Module ActiveDirectory
    \nStep 3: Promote the Server to a Domain Controllers<\/strong>
    \nTo promote the server to a secondary domain controller, use the Install-ADDSDomainController cmdlet. This cmdlet not only adds the server as a DC but also configures the necessary AD components. Customize the parameters according to your environment:<\/p>\n

    powershell
    \nCopy code
    \nInstall-ADDSDomainController -DomainName “” -Credential (Get-Credential) -InstallDns -ReplicationSourceDC “” -SiteName “”<\/p>\n