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# # Backup Domain Controller

...ate test data from your domain, use the [[Domain rename tool]] to create a backup; the example on this page assumes you have used mydomain.org as the renamed sudo samba-tool domain backup rename MYDOMAIN mydomain.org --targetdir=/tmp/backup --server=dc1 -UAdministrator

* Join domain as either member or backup domain controller * Copy a running DC's current DB into a backup tar file

added: "cn=Backup Operators,ou=Groups,dc=differentialdesign,dc=org" (00000013)

...r domain using the [[Back_up_and_Restoring_a_Samba_AD_DC|samba-tool domain backup tool]]. ...age, take an [[Back_up_and_Restoring_a_Samba_AD_DC#Online_DC_backup|online backup]] of another DC in the network. This mimics the rejoin process - if it does

added: "cn=Backup Operators,ou=Groups,dc=differentialdesign,dc=org" (00000013)

...roblems with your Active Directory (AD). Verify that you have a restorable backup before changing the IP address. For details, see [[Back_up_and_Restoring_a_

== Backup Domain Controller (BDC) == ...s are always done on the [[#Primary_Domain_Controller_.28PDC.29|PDC]]. The Backup Domain Controller is only read-only. Changes are pushed from the PDC via Ma

...uld [[Back_up_and_Restoring_a_Samba_AD_DC#Restoring_the_domain|restore the backup-file]] you made prior to upgrading. Note that you can only restore a single ...abase was upgraded by that version (or a higher one). Hopefully you made a backup of your database before upgrading, in which case you restore it. Otherwise,

For Time Machine backup share (added in Samba 4.8):

...in uses only one Primary Domain Controller (PDC) and optionally additional Backup Domain Controllers (BDC). In an AD forest, there is no difference between D * Create a hot-backup of the <code>/usr/local/samba/private/idmap.ldb</code> file on the existing

...nges to understand the process. Restoring your production environment from backup is costly in time and resources, and may cause an extended outage as a resu * Ensure you do this first on a [[Create_a_samba_lab-domain|lab-domain backup of your production domain]]

(*) information persistent across restarts (but not necessarily important to backup).

It is not necessary to install smbldap-tools on the backup domain controller. However this lets you add users from the BDC which will

| text = Updating the Schema can break your AD. Verify you have a working backup before updating the schema.

...broken DC and connect it to the network again. But never restore it from a backup, if at least one DC in the domain is still working. The replication could m

:* [[Backup and restore]]

<BR>Before starting, make a '''backup''' of your sysvol just in case.

<BR>Please make a '''backup''' of your sysvol, just in case, this is because there is no <code>dry-run<

It is not necessary to install smbldap-tools on the backup domain controller. However this lets you add users from the BDC which will