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Saturday, March 1, 2014

Creating a Virtualized Read Only Active Directory in Windows Azure

 

In our previous post, we have create a point to site vpn. We have established a connection between our premises to Window Azure. Moving forward, we are going to create a VM to hold a read-only domain controller at Windows Azure.

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To do so,  create a virtual machine by using Quick Create / use gallery in Windows Azure.

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Follow the wizard to select the operating system, enter vm name, cpu size, local administrator account, network and endpoint.

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Once the VM has provisioned, add a data disk to store the active directory database.

To avoid active directory database corrupted, you need to set disk caching as “None” or Read Online mode before dcpromo.By default, C disk is set to read/write caching. -DO NOT STORE THE DATABASE INTO C Drive-

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Then Connect into the virtual machine by using RDP, open computer management | disk management, initialize the new disk and format it.

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Verify that you can ping your primary domain controller (at your premises) and able to join to domain before configure the next step. On Virtual network, there is a connection between your premise and Windows Azure.

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Next step is add a role “Active Directory Domain Services” by using Server Manager. –DO NOT USE DCPROMO CMD-

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Once the components has installed, proceed to configure it by click on “Promote this server to a domain controller” (click on the flag next to Manage – on Server Manager console”

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This will open “Active Directory Domain Services Configuration Wizard”.

a. Select “add a domain controller to an existing domain”

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b. Select “Read only domain controller (RODC)

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c. Verify the following account for delegated administrator, account to replicate RODC and account to be denied.

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d. When reach to Path, make sure change to the disk that you has set caching to “None”

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e. Continue the pre-requisite check and install the roles.

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Verification

To verify, open Active Directory User and Computer snap-in. You can see a new RODC has added into Domain Controller OU.

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