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Recovery Manager for AD Disaster Recovery Edition 10.1.1 - User Guide

Overview Getting started
Permissions required to use Recovery Manager for Active Directory Recovery Manager Console Getting and using help Configuring Windows Firewall Using Computer Collections Managing Recovery Manager for Active Directory configuration Licensing
Backing up data
Permissions required for the Backup operation Managing Backup Agent Using a least-privileged user account to back up data Using Managed Service Accounts Active Directory backups vs Windows System State backups Creating BMR and Active Directory backups Using the Backup Wizard Retrying backup creation Enabling backup encryption Backing up AD LDS (ADAM) Backing up cross-domain group membership Backing up distributed file system (DFS) data Backup scheduling Setting performance options Setting advanced backup options Using Forest Recovery Agent Unpacking backups Using e-mail notification Viewing backup creation results
Restoring data
Getting started with Active Directory recovery Managing deleted or recycled objects Restoring backed up Active Directory components Integration with Change Auditor for Active Directory Using granular online restore Restoring AD LDS (ADAM) Selectively restoring Active Directory object attributes Restoring objects in an application directory partition Restoring object quotas Restoring cross-domain group membership Performing a restore without having administrator privileges Reports about objects and operations Using complete offline restore Offline restore implications Restoring SYSVOL authoritatively Performing a granular restore of SYSVOL Recovering Group Policy Restoring data from third-party backups Using the Extract Wizard Restoring passwords and SID history
Full Replication Consolidating backup registration data Monitoring Recovery Manager for Active Directory Recovering an Active Directory forest
Forest recovery overview Deploying Recovery Manager for Active Directory Forest Edition (Disaster Recovery Edition) Permissions required to use Forest Recovery Console Forest Recovery Console Managing a recovery project Recovery methods Phased recovery Managing Forest Recovery Agent Rebooting domain controllers manually Resetting DSRM Administrator Password Purging Kerberos Tickets Managing the Global Catalog servers Managing FSMO roles Manage DNS Client Settings Configuring Windows Firewall Developing a custom forest recovery plan Backing up domain controllers Assigning a preferred DNS server during recovery Handling DNS servers during recovery Forest recovery approaches Deciding which backups to use Running custom scripts while recovering a forest Overview of steps to recover a forest Viewing forest recovery progress Viewing recovery plan Viewing a report about forest recovery or verify settings operation Handling failed domain controllers Adding a domain controller to a running recovery operation Selectively recovering domains in a forest Recovering SYSVOL Deleting domains during recovery Resuming an interrupted forest recovery Recovering read-only domain controllers (RODCs) Checking forest health Collecting diagnostic data for technical support
Restore Active Directory on Clean OS Bare metal forest recovery Using Management Shell Creating virtual test environments Using Recovery Manager for Active Directory web portal Appendices
Frequently asked questions Best practices for using Computer Collections Technical characteristics Best practices for creating backups Best practices for creating backups for forest recovery Best practices for recovering a forest Descriptions of recovery or verification steps Ports Used by Recovery Manager for Active Directory Forest Edition (Disaster Recovery Edition) Backup Wizard Online Restore Wizard Online Restore Wizard for AD LDS (ADAM) Group Policy Restore Wizard Repair Wizard Extract Wizard Events generated by Recovery Manager for Active Directory Descriptions of PowerShell commands
Add-RMADBackup Add-RMADCollectionItem Add-RMADFEComputer Add-RMADReplicationConsole Add-RMADStorageServer Backup-RMADCollection Close-RMADFEProject Compare-RMADObject Convert-RMADBackup ConvertTo-RMADRecycledObject Create-RMADStorageManagementAgentSetup Expand-RMADBackup Export-RMADBackup Export-RMADFERecoveryCertificate Export-RMADFEResult Get-RMADBackup Get-RMADBackupAgent Get-RMADBackupInfo Get-RMADBackupObject Get-RMADBackupSecurityStatus Get-RMADCollection Get-RMADCollectionItem Get-RMADDeletedObject Get-RMADFEComputer Get-RMADFEConsole Get-RMADFEDnsCache Get-RMADFEDomain Get-RMADFEEvent Get-RMADFEGlobalOptions Get-RMADFEOperation Get-RMADFEPersistenceConnection Get-RMADFEProject Get-RMADFERecoveryAgent Get-RMADFESchedule Get-RMADGlobalOptions Get-RMADLicenseInfo Get-RMADObject Get-RMADReplicationConsole Get-RMADReplicationSchedule Get-RMADReplicationSession Get-RMADReplicationSessionItem Get-RMADReportObject Get-RMADReportObjectAttributes Get-RMADReportObjectChildren Get-RMADReportSession Get-RMADSession Get-RMADSessionItem Get-RMADSessionItemEvent Get-RMADStorageServers Import-RMADBackup Import-RMADFERecoveryCertificate Install-RMADBackupAgent Install-RMADFERecoveryAgent New-RMADCollection New-RMADFEProject New-RMADFERecoveryMedia New-RMADSchedule Open-RMADFEProject Publish-RMADBackupSecurityStatus Remove-RMADBackup Remove-RMADBackupAgent Remove-RMADCollection Remove-RMADCollectionItem Remove-RMADFEComputer Remove-RMADFERecoveryAgent Remove-RMADFESchedule Remove-RMADReplicationConsole Remove-RMADReplicationSchedule Remove-RMADReplicationSession Remove-RMADStorageServer Remove-RMADUnpackedComponent Rename-RMADCollection Restore-RMADDeletedObject Restore-RMADDomainController Restore-RMADObject Resume-RMADFERecovery Save-RMADFEProject Set-RMADCollection Set-RMADFEComputer Set-RMADFEDnsCache Set-RMADFEDomain Set-RMADFEGlobalOptions Set-RMADFEPersistenceConnection Set-RMADFERecoveryMode Set-RMADFESchedule Set-RMADGlobalOptions Set-RMADReplicationConsole Set-RMADReplicationSchedule Start-RMADFERecovery Start-RMADFEVerification Start-RMADReplication Start-RMADReportViewer Stop-RMADFEWorkflow Update-RMADBackupAgent Update-RMADFEProject Update-RMADLicense

Restoring passwords and SID history

When undeleting an object by using the agentless method, the Online Restore Wizard employs LDAP functions along with the Restore Deleted Objects feature provided by the Windows operating system. This feature restores only the attributes preserved in the object’s tombstone. The other attributes are restored from a backup. However, some attributes, such as Password and SID History cannot be written using LDAP functions, and thus cannot be restored from a backup via the agentless method.

In many situations, the inability to restore the Password attribute from a backup is not a big problem as an object’s password can be reset after restoring the object. As for the SID History attribute, its restoration may be business-critical. An example is a situation where the domain from which the object was migrated is unavailable or decommissioned, and therefore SID History cannot be re-added.

To enable the restoration of these two attributes using the agentless method, the Active Directory schema may be modified so that these attributes are preserved in object tombstones. As a result, an undeleted object has the same Password and SID History as the object had when it was deleted.

As this solution requires schema modifications, it should be carefully considered. Microsoft recommends modifying or extending the schema only in extreme situations. Proceed with extreme caution, because making a mistake may render the directory service unstable, resulting in a reinstallation.

Often, organizations are reluctant to make changes to the schema because schema modifications may result in heavy replication traffic. It is not the case for the schema modifications described in this article as they do not affect the partial attribute set (PAS).

Note

Recovery Manager for Active Directory also provides an agent-based method for restoring or undeleting objects. With the agent-based method any attributes can be restored. The agent-based method does not require any schema modifications.

 

Preserving passwords and SID history in object tombstones

To preserve passwords and SID history in object tombstones, complete the following steps:

 

Step 1: Make sure prerequisites are met

  • You are logged on as a member of the Schema Admins group.

  • Write operations to the schema are allowed.

 

Step 2: Modify the searchFlags attribute value

To preserve SID History in tombstones, you need to modify the searchFlags attribute value for the SID-History (sIDHistory) schema object.

To preserve passwords in tombstones, you need to modify the searchFlags attribute value for the following password-related schema objects:

  • Unicode-Pwd (unicodePwd)

  • DBCS-Pwd (dBCSPwd)

  • Supplemental-Credentials (supplementalCredentials)

  • Lm-Pwd-History (lmPwdHistory)

  • Nt-Pwd-History (nTPwdHistory)

IMPORTANT

The Lm-Pwd-History and Nt-Pwd-History attributes are used to store password history. For security reasons, it is recommended to restore them along with the password.

To determine the new searchFlags attribute value to be set, use the following formula:

8 + current searchFlags attribute value = new searchFlags attribute value

To modify the searchFlags attribute value
  1. Use the ADSI Edit tool (Adsiedit.msc) to connect to the Schema naming context using the domain controller that holds the Schema Master FSMO role:

    a. Start the ADSI Edit tool (Adsiedit.msc).

    b. In the left pane of the console, right-click the ADSI Edit console tree root, and then on the shortcut menu click Connect to.

    c. In the dialog box that opens, do the following:

    • Click Select a well known Naming Context option, and then select Schema from the list below.

    • Click Select or type a domain controller or server option, and then type the name of the domain controller that holds the Schema Master FSMO role.

    d. Click OK to connect.

  2. In the left pane of the console, expand the Schema container to select the container that includes the schema objects you want to modify.

  3. Right-click the object you want to modify in the right pane, and then click Properties.

  4. Enter the new searchFlags attribute value you determined earlier:

    a. On the Attribute Editor tab, select searchFlags from the Attributes list, and then click the Edit button.

    b. In the Attribute Editor box, enter the new value and click OK.

 

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