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authoritative restore on Windows 2003

Today we will learn how we can perform an authoritative restore of Active Directory objects in Windows 2003 SP1 . A common case is the deletion of user accounts Computers or Active Directory groups such as involuntary ignorance of the administration of Active Directory. Currently there are some ways to retrieve user accounts and other objects, but now learn to perform an authoritative restore of an OU containing objects such as users and computers.

Requirements: Have
  • full System State backup of a domain controller. EYE: Let's restore a backup made by the same server. Backup and restore in a single server, otherwise we will have trouble booting the operating system.

Steps to perform a backup:

Before: The Servers OU has been deleted.

  1. Login to Start, Run, type ntbackup.exe.

  2. Select Backup, and expand the server and select the option System State Data. Assign

  3. path where the backup of System State of the Domain Controller.
  4. Finally made the backup.

Steps for authoritative restore of Organizational Unit:

  1. Restart the domain controller, and load it into recovery mode or Active Directory Services Directory Services Restore mode. This we can do by pressing F8 after boot.

  2. Revenue and began meeting with the account of Directory Services Restore Mode, which was defined at the time to promote this server as domain controller. If we do not know the password to reset it or restore it. To restore we normally charge domain controller, open a command prompt and type ntdsutil , then write set dsrm password. Then write reset password on server null, finally write the new password. Then we write quit. More info here: http://support.microsoft.com/kb/322672/en-us

  3. After entering the correct password in Directory Services Restore Mode mode, we must restore the System State backup. For this we go to Start, Run and type ntbackup.exe.

  4. Select Restore, select the backup option and select the System State Data.

  5. We found that the site restoration is Original location and started to restore. We will restore the default.

  6. After finishing the restoration we will have to restart the Domain Controller. We click OK. Again

  7. before loading and we must press F8 enter the Directory Services Restore Mode.

  8. We're going to Start, Run, cmd, ntdsutil .

  9. write authoritative restore, as we will restore a deleted OU called servers, we write restore subtree "OU = Servers, DC = exchangepro, DC = local." We know all the options of writing authoritative restore the question mark? We can restore objects such as users, for example if we want to restore the user account has been deleted jcordova the Users OU object should write restore DN = jcordova, OU = Users, DC = exchangepro, DC = local


  10. After selecting the object to restore load the database of Active Directory: ntds.dit and objects are restored.

  11. Then we restart the domain controller at this time the domain controller replicates the new object being restored.

  12. Finally, we verify that the restored objects are present in the Active Directory.

After: The Servers OU and its objects have been restored:


Note: restored user accounts a System State backup of more than 14 days lost the password for access between domains where there is a relationship trust between domains. If this happens must recreate the trust relationship.

can get more information from authoritative restore of Domain Controllers in: http://support.microsoft.com/kb/840001/en-us

Video:

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