Ubuntu 18.04
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BIND : Set CNAME
2018/05/08
 
If you'd like to set another name to your Host, define CNAME record in zone file.
[1] Set CNAME record in zone file.
root@dlp:~#
vi /etc/bind/srv.world.lan
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
        # update serial
        2018050802  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
        IN  NS      dlp.srv.world.
        IN  A       10.0.0.30
        IN  MX 10   dlp.srv.world.

dlp     IN  A       10.0.0.30

# aliase IN CNAME server's name
ftp     IN  CNAME   dlp.srv.world.

root@dlp:~#
rndc reload

server reload successful
root@dlp:~#
dig ftp.srv.world.


; <<>> DiG 9.11.3-1ubuntu1-Ubuntu <<>> ftp.srv.world.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15143
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

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

;; ANSWER SECTION:
ftp.srv.world.          86400   IN      CNAME   dlp.srv.world.
dlp.srv.world.          7199    IN      A       10.0.0.30

;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Tue May 08 17:25:38 JST 2018
;; MSG SIZE  rcvd: 76
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