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01- Network	02- SambaAD	03- PdnsRecursor	04- Settings	05- Maintenance
06- SecondaryAD	07- Samba-tool	08- Selinux	09- GnomeShell	10- Troubleshoots

3. Pdns-Recursor.

Pdns-recursor is found in epel-release.

PowerDNS Recursor is a highly efficient,
low-latency DNS caching server that guarantees the right web site
or other online resource is returned in response
to your subscribers' DNS requests as quickly as possible.

3.1 Principle.

I am using pdns-recursor to do the redirect.
Operation:
Pdns-recursor responds to all dns requests on port 4343.
These requests are redirect to another dns server 192.168.90.41.

3.2 Installation.

dnf install epel-release
dnf install pdns-recursor

3.3 Pdns-recursor.

Warning
The configuration file has changed.
It is in the form of yaml.
It is possible to convert an old recursor.conf (pdns-recursor 4.8.9) configuration file with the command "rec_control show-yaml recursor.conf".

cp /etc/pdns-recursor/recursor.conf /etc/pdns-recursor/recursor.conf_ori
vi /etc/pdns-recursor/recursor.conf

Modify only the lines.
Pay attention to line indentation.

...  
##### IP addresses to listen on, separated by spaces or commas. Also accepts ports.  
    listen:  
    - 127.0.0.1  
...  
##### port to listen on  
    port: 4343  
...  
######### SECTION recursor #########  
recursor:  
....  
 ##### Zones for which we forward queries with recursion bit, comma separated domain=ip pairs  
   forward_zones_recurse:  
   - zone: .  
     recurse: true  
     forwarders:  
     - 192.168.90.41  
##### Sequence of ForwardingCatalogZone  
...  

systemctl enable --now pdns-recursor

3.4 Modify samba.

Edit smb.conf to change the DNS redirector.
vi /etc/samba/smb.conf

      dns forwarder = 127.0.0.1:4343  

systemctl restart samba

nslookup thot.dw.learn.lan

Server:         127.0.0.1  
Address:        127.0.0.1#53  
  
Name:   thot.dw.learn.lan  
Address: 192.168.40.47  

nslookup google.fr

Server:         127.0.0.1  
Address:        127.0.0.1#53  
  
Non-authoritative answer:  
Name:   google.fr  
Address: 142.250.179.99  
Name:   google.fr  
Address: 2a00:1450:4007:808::2003