Search This Blog

Saturday, May 31, 2014

Create an Additional Domain Controller Using Install From Media (IFM)

 

Do you ever wait for a long period when setup an additional domain controller especially in branch environment and wait for it to replicate AD database? You may need to wait a bit longer especially when you have limited Internet connectivity.

Well, we do and we even tested to deploy a virtualized domain controller in branch and it only has 128K bandwidth. The connection was crawling like turtle speed and it took very long to replicate entire active directory database.

To solve this problem, we decided to use IFM (Install from media). To start with, make sure your existing domain controller

  • running at least Windows Server 2012
  • DNS
  • Global catalog

Use command prompt and type

ntdsutil
activate instance NTDS
ifm
create sysvol full C:\backup\ifm

image

This process will store active directory database, registry and sysvol into C:\Backup\IFM

image

Once complete, transfer the entire folder in C:\backup to your branch virtualized domain controller. Now you have successful created an IFM using ntdsutil.

Next step is setup an additional domain controller at branch.

Make sure you have install Active Directory Domain Services roles and then configure DC using Server Manager.

image

Click “Promote this server to a domain controller”

image

Select “Add a domain controller to an existing domain”

image

Select the site that you’ve created and enter Directory Service Restore Mode password”

image

image

IMPORTANT

Select Install from media , define the path which consist your backup ntds and select replicate from nearest DC

image

Then Define the path of new active directory database to another path (normally another disk). For more info, you can check out “Best Practice on Virtualizing Domain Controller post

image

image

Click Install to start the installation

image

Verification

Verify that you can access the following snap-in:-

  • Active Directory User and Computer
  • Active Directory Sites and Services
  • Active Directory Domain and Trust

image

Lastly initiate force replication to sync with primary domain controller to get the latest active directory database.

image

Well, that’s all for now.

As a conclusion, by using IFM it can you a lot of time and also your network bandwidth. Give it a try if you do have multi site branch Active directory deployment.

No comments:

Post a Comment