ubunu 22.04 bind

sudo apt update
sudo apt install bind9

/etc/bind/namded.conf.local

zone "mydomain.com" IN {
  type master;
  file "mydomain.com.zone";
};

mydomain.com.zone

;
; BIND data file for local loopback interface
;
$TTL    604800
@       IN      SOA     mydomain.com. root.mydomain.com. (
                              2         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
;
@       IN      NS      localhost.
@       IN      A       110.10.147.179
@       IN      AAAA    ::1
ns1     IN      A       110.10.147.179
push    IN      A       110.10.147.179

validation

$ named-checkzone mydomain.com mydomain.com.zone
zone mydomain.com/IN: loaded serial 2
OK