BIND : Verify Name Resolution2025/11/03

	Start BIND and verify if name or address resolution works fine.
[1]	Start 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

success
[root@dlp ~]#

firewall-cmd --runtime-to-permanent

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 up enp1s0

[4]	Verify Name and Address Resolution. If [ANSWER SECTION] is shown, that's OK.

[root@dlp ~]#

dig dlp.srv.world.


; <<>> DiG 9.18.41 <<>> dlp.srv.world.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57525
;; flags: qr aa rd ra ad; 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.          0       IN      A       10.0.0.30

;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
;; WHEN: Mon Nov 03 09:59:12 JST 2025
;; MSG SIZE  rcvd: 58

[root@dlp ~]#

dig -x 10.0.0.30


; <<>> DiG 9.18.41 <<>> -x 10.0.0.30
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29873
;; 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: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
;; WHEN: Mon Nov 03 10:00:26 JST 2025
;; MSG SIZE  rcvd: 78

Matched Content