samba - Apr 2025 - Domain Online Backup Restore

HI,

DC running in CentOS Stream 9,
During the Primary DC configuration we have selected the option Bind9_DLZ,
samba-tool domain online backup having bind-dns folder with empty, no data
is there.
/etc/named.conf file configurations are,
  listen-on port 53 { any; };
  forwarders { 8.8.8.8; };
 allow-query     { any; };
 tkey-gssapi-keytab "/usr/local/samba/bind-dns/dns.keytab";
include "/usr/local/samba/bind-dns/named.conf";
include "/etc/rndc.key";

/usr/local/samba/bind-dns/named.conf configurations are,
 database "dlopen /usr/local/samba/lib/bind9/dlz_bind9_11.so";

I don't know where the zone files are stored. Because I may have missed the
zone file backup.
anyone tell me the procedure for taking samba DC Backup and restore to the
new server if the old server will not function,
We have below 100 Clients only so that reason we running one ADDC

Arun Kumar B


On Tue, Apr 1, 2025 at 6:32?PM ARUN KUMAR B <isgarunkumar.b at
dsmsoft.net>
wrote:
> Hi,
>
> I have a domain which is builded from samba source 4.17.2 and the OS is
> Centos Stream 9,
> And i have taken samba domain online backup,
> Now that server hard disk failure, Im tried to restore to a new server,
> During the restore i changed the target path and server hostname it
> successfully restored.
> And samba service also started, But the named service failed to start it
> is referring the samba installation path /usr/local/samba/ but during the
> restoration i set this path /usr/local/sambanew
>
> Any one tell the full step for restoring samba online backup with named
> service.
>
> Regards,
>
> Arun Kumar B
>
>
>

On Wed, 2 Apr 2025 18:02:27 +0530
ARUN KUMAR B via samba <samba at lists.samba.org> wrote:
> HI,
> 
> DC running in CentOS Stream 9,
> During the Primary DC configuration we have selected the option
> Bind9_DLZ, samba-tool domain online backup having bind-dns folder
> with empty, no data is there.
If you look at:

https://wiki.samba.org/index.php/Back_up_and_Restoring_a_Samba_AD_DC

At the bottom, under 'FAQ', there is this:

The bind-dns/ folder is empty. Why are no DNS Records saved?

The backup is a backup of the domain, but by default the restore will
be configured for 'internal' DNS. Just use samba_upgradedns to change
to DLZ_BIND9 if desired. 
> I don't know where the zone files are stored. Because I may have
> missed the zone file backup.
The DNS records are in AD.
> anyone tell me the procedure for taking samba DC Backup and restore
> to the new server if the old server will not function,
Read the wikipage I linked to above.
> We have below 100 Clients only so that reason we running one ADDC
Not enough clients to run more than one DC, but used Bind9 ?

I suggest you learn from this and run more than one DC.

Rowland