BIND : Set Alias (CNAME)2021/02/24 |
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If you'd like to set Alias (Another Name) to a Host, set CNAME record in a zone file.
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| [1] | Set CNAME record in a zone file. |
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[root@dlp ~]#
vi /var/named/srv.world.lan
$TTL 86400
@ IN SOA dlp.srv.world. root.srv.world. (
# update serial if update zone file
2021022402 ;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
www IN A 10.0.0.31
# [Alias] IN CNAME [Original Name]
ftp IN CNAME dlp.srv.world.
[root@dlp ~]#
rndc reload server reload successful # verify resolution [root@dlp ~]# dig ftp.srv.world. ; <<>> DiG 9.11.26-RedHat-9.11.26-3.el8 <<>> ftp.srv.world. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 921 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ; COOKIE: 95bb76ad3b5fba2e9d888d7e6035b959129ae8ee7a065547 (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: Wed Feb 24 11:26:33 JST 2021 ;; MSG SIZE rcvd: 118 |
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