BIND : Verify Resolution

[1]	Restart BIND to apply changes.

root@dlp:~#  systemctl restart named

[2]	Change DNS setting to refer to own DNS if need.

root@dlp:~#  vi /etc/resolv.conf # change nameserver nameserver 10.0.0.30 # * if you are using resolvconf or Networkmanager programs, # change nameserver setting on a file for their requirements

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

root@dlp:~#  dig dlp.srv.world. ; <<>> DiG 9.20.11-4-Debian <<>> dlp.srv.world. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32424 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ; COOKIE: 0c6203bc2433b1530100000068a3bd4688e4b1747cc060e2 (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: Tue Aug 19 08:54:46 JST 2025 ;; MSG SIZE rcvd: 86 root@dlp:~#  dig -x 10.0.0.30 ; <<>> DiG 9.20.11-4-Debian <<>> -x 10.0.0.30 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27182 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ; COOKIE: c7ae9c542675f9a60100000068a3bf6c0ba38e21ee83f4f1 (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: Tue Aug 19 09:03:56 JST 2025 ;; MSG SIZE rcvd: 106