Set CNAME2017/07/17

	If you'd like to set another name to your Host, define CNAME record in a zone file.
[1]	Set CNAME record in zone file.

[root@dlp ~]#

vi /var/named/srv.world.lan

$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
        # update serial
        2017071702  ;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 9.11.1-P2-RedHat-9.11.1-2.P2.fc26 <<>> ftp.srv.world.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48540
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 3cde31aada4fe9f65fc0acbc596d66eb7cfa9cc26c347d9a (good)
;; QUESTION SECTION:
;ftp.srv.world.                 IN      A

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

;; AUTHORITY SECTION:
srv.world.              86400   IN      NS      dlp.srv.world.

;; Query time: 0 msec
;; SERVER: 10.0.0.30#53(10.0.0.30)
;; WHEN: Tue Jul 18 10:39:55 JST 2017
;; MSG SIZE  rcvd: 118

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