BIND : Verify Resolution2021/05/05 |
[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 9.16.11-RedHat-9.16.11-5.fc34 <<>> dlp.srv.world. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37182 ;; 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: Wed May 05 21:05:41 JST 2021 ;; MSG SIZE rcvd: 58[root@dlp ~]# dig -x 10.0.0.30 ; <<>> DiG 9.16.11-RedHat-9.16.11-5.fc34 <<>> -x 10.0.0.30 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42118 ;; 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: Wed May 05 21:06:16 JST 2021 ;; MSG SIZE rcvd: 78 |
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