CentOS 5
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Set CNAME
2015/01/13
 
If you'd like to set another name to your Host, define CNAME record in zone file.
[1] Set CNAME record in a zone file.
[root@dlp ~]#
vi /var/named/srv.world.lan
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
# update serial

        2007041502  ;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 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> ftp.srv.world.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6745
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; 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: Mon Mar 14 20:55:43 2011
;; MSG SIZE rcvd: 82
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