Fedora 33
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BIND : Verify Resolution
2020/11/02
[1] Start and Enable BIND.
[root@dlp ~]#
systemctl enable --now named

[2] If Firewalld is running, allow DNS service. DNS uses [53/TCP,UDP].
[root@dlp ~]#
firewall-cmd --add-service=dns --permanent

success
[root@dlp ~]#
firewall-cmd --reload

success
[3] Change DNS setting to refer to own DNS if need.
(replace [enp1s0] to your own environment).
[root@dlp ~]#
nmcli connection modify enp1s0 ipv4.dns 10.0.0.30

[root@dlp ~]#
nmcli connection down enp1s0; nmcli connection up enp1s0

[4] Verify Name and Address Resolution. If [ANSWER SECTION] is shown, that's OK.
[root@dlp ~]#
dig dlp.srv.world.


; <<>> DiG 9.11.23-RedHat-9.11.23-1.fc33 <<>> dlp.srv.world.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33834
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;dlp.srv.world.                 IN      A

;; ANSWER SECTION:
dlp.srv.world.          86400   IN      A       10.0.0.30

;; Query time: 1 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Mon Nov 01 19:21:06 JST 2020
;; MSG SIZE  rcvd: 58

[root@dlp ~]#
dig -x 10.0.0.30


; <<>> DiG 9.11.23-RedHat-9.11.23-1.fc33 <<>> -x 10.0.0.30
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54269
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;30.0.0.10.in-addr.arpa.                IN      PTR

;; ANSWER SECTION:
30.0.0.10.in-addr.arpa. 86400   IN      PTR     dlp.srv.world.

;; Query time: 1 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Mon Nov 01 19:21:42 JST 2020
;; MSG SIZE  rcvd: 78
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