Authoritative restore for Windows Server R2 domain

The experiment and the domain backup and restore have the same place, the domain backup is the same, but the restore is different, this time to do is authorized to restore.

First of all, the big environment, the production of the domain environment has two domain controllers Server01 and Server02, we want to create a user on the Server01, Tom, and then the backup, and then delete the user Tom, with just a good backup to restore, May I ask Tom if this user can be successfully restored?

Of course, if the answer is yes, that would not have been our experiment, but if the answer is not, then why? Let's analyze the problem before we do the experiment.

The problem we created on the Server01 Tom this user, because Server02 is also domain control, so Server02 will also generate this user, after we do a backup, the backup is the user, after the successful backup, We also deleted the Server01 above the user, Server02 above also did not have, when we in Server01 above to do a restore, Server01 above is there, according to the domain of the replication principle, Server02 above will also go to Server01 above synchronous restore, but in fact Server01 above the value of the restored property is less than Server02 above the attribute value, so Server02 will not synchronize data, Server01 will synchronize Server02 data, So Tom this user is not able to restore the success.

To successfully restore Tom This user, we will manually increase the value of the Server01 restore property, greater than the Server02 property value, so that the restore succeeds, Server02 will also successfully synchronize Server01 restore the successful data, we have to do is authoritative restore.

Let's start with the experiment, the preparation is to need a complete domain environment, SERVER01 and Server02 are domain controllers, and the data can be synchronized successfully.

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Below we create the user on the Server01.

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The data is automatically copied over the Server02.

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Let's make a backup of Server01.

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After the backup is successful, we remove the user from Tom and note that the organizational unit cannot be deleted.

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After the data between the domain controllers is synchronized, we restart the F8 on the Server01 to go to the directory Service Repair mode to restore the backup, in the recovery operation, this option must be checked.

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Start recovering data.

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Note that after the recovery is successful, you must not click Restart here.

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Here we need to open the command line to operate, when the start of the operation is no longer available, we want to use the Windows key plus r to open the command line.

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Open the Active Directory Maintenance tool.

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Activates the instance.

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Enter authoritative restore.

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Below to create a user, cn= user name, ou= organizational unit (group name), cd= domain name, cn=com, click Yes after execution.

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Success is displayed after execution.

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After the success we entered two consecutive quit quit, and then exit close the command line.

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Close the command line and you can click Restart.

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Restart restore successful, we go back to continue.

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The user above the Server01 has been restored.

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Server02 also copied successfully above.

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The experiment on authorizing the restoration is complete.

(Declaration: The uec.com in the experiment is for demonstration purposes only.) ）

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Authoritative restore for Windows Server R2 domain