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5. Pdns-recursor.

Warning
Wednesday, September 24, pdns-recursor does not exist in the epel 10 repositories.
I use the version 5.3.

5.1 Principle.

Pdns does not allow redirection for other domains.
I am using pdns-recursor to do the redirect.
Operation:
Pdns-recursor responds to all dns requests on port 53.
If these requests concern the ol26modk.com domain , pdns-recursor redirects these requests on port 8669 to pdns.
For other domains pdns-recursor redirects these requests to another dns server.

5.2 Installation.

Download pdns-recursor-5.
cd /tmp
wget https://repo.powerdns.com/centos/x86_64/10/rec-53/pdns-recursor-5.3.0-1pdns.el10.x86_64.rpm
Install dependencies.
dnf install boost-context boost-filesystem net-snmp-agent-libs
Install the package.
rpm -ivh pdns-recursor-5.3.0-1pdns.el10.x86_64.rpm

5.3 Pdns.

Pdns configuration to listen on port 8669.
vi /etc/pdns/pdns.conf

# local-address Local IP addresses to which we bind  
local-address=0.0.0.0  
# local-port    The port on which we listen  
local-port=8669  

systemctl restart pdns
systemctl enable --now pdns-recursor

5.4 Pdns-recursor.

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

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

incoming:  
# local-address IP addresses to listen on  
  listen:  
  - 192.168.90.41  
# local-port   port to listen on  
  port: 53  
recursor:  
# forward-zones for ol26modk.com.  
# pdns listen to 8669  
  forward_zones:  
  - zone: ol26modk.com  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
# Forward-zones for reverse-zones  
# pdns listen to 8669  
  - zone: 40.168.192.in-addr.arpa  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
  - zone: 50.168.192.in-addr.arpa  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
  - zone: 60.168.192.in-addr.arpa  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
  - zone: 70.168.192.in-addr.arpa  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
  - zone: 80.168.192.in-addr.arpa  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
  - zone: 90.168.192.in-addr.arpa  
    recurse: false  
    forwarders:  
    - 127.0.0.1:8669  
# If you have AD domain server.  
# Ip ad server is 192.168.40.47:53  
  - zone: dw.learn.lan  
    recurse: false  
    forwarders:  
    - 192.168.40.47:53  
# forward-zones-recurse Zones .   
# By default, anything not listed above is returned as another DNS server.  
  forward_zones_recurse:  
  - zone: .  
    recurse: true  
    forwarders:  
    - 1.1.1.1  
# This is the default on older versions of pdns-recursor.  
  security_poll_suffix: ''  
  setgid: pdns-recursor  
  setuid: pdns-recursor  
# Validation result: OK  
# End of converted recursor.conf  
# This configuration was converted from the recursor.conf file in pdns-recursor 4.8.9.  
# The script is :  
#  rec_control show-yaml recursor.conf  
  

systemctl restart pdns-recursor

5.5 Network.

Put the ip of your DNS server.
nmcli con mod eth0 ipv4.dns 192.168.90.41

systemctl restart NetworkManager
cat /etc/resolv.conf

search ol26modk.com  
nameserver 192.168.90.41  

5.6 Check your dns server.

nslookup dns1
nslookup dns1.ol26modk.com
nslookup google.fr