BIND : 名前解決の動作確認2023/12/20

[1]	BIND を起動します。

root@dlp:~ #

echo 'named_enable="YES"' >> /etc/rc.conf

root@dlp:~ #

service named start

wrote key file "/usr/local/etc/namedb/rndc.key"
Starting named.

[2]	必要に応じて、名前解決の参照先を自ホストに変更しておきます。

root@dlp:~ #

vi /etc/resolv.conf

# 名前解決の参照先を自身に変更

search srv.world
nameserver 10.0.0.30

[3]	正常に名前解決ができるかどうかの動作確認を行います。[ANSWER SECTION] に結果が表示されていれば OK です。

root@dlp:~ #

dig dlp.srv.world.


; <<>> DiG 9.18.20 <<>> dlp.srv.world.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37149
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: b5a1836a18b4839a010000006582414e5c2ae7ceea002657 (good)
;; QUESTION SECTION:
;dlp.srv.world.                 IN      A

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

;; Query time: 0 msec
;; SERVER: 10.0.0.30#53(10.0.0.30) (UDP)
;; WHEN: Wed Dec 20 10:20:14 JST 2023
;; MSG SIZE  rcvd: 86

root@dlp:~ #

dig -x 10.0.0.30


; <<>> DiG 9.18.20 <<>> -x 10.0.0.30
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46843
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 44483ecdccafc9140100000065824170a8abb44dc5397688 (good)
;; 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: 10.0.0.30#53(10.0.0.30) (UDP)
;; WHEN: Wed Dec 20 10:20:48 JST 2023
;; MSG SIZE  rcvd: 106