BIND : Configure Secondary Server2023/12/20 |
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Configure DNS Secondary Server.
On this example, it shows to configure DNS Secondary Server [ns.server.education] (192.168.100.85) that
DNS Primary Server is [dlp.srv.world] (172.16.0.82) configured like here.
Replace IP address and Hostname to your own environment. |
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| [1] | Configure on DNS Primary Host. |
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root@dlp:~ #
vi /usr/local/etc/namedb/named.conf
options {
.....
.....
allow-query { localhost; internal-network; };
// add secondary server to allow to transfer zone files
allow-transfer { localhost; 192.168.100.85; };
.....
.....
root@dlp:~ #
vi /usr/local/etc/namedb/primary/srv.world.wan
$TTL 86400
@ IN SOA dlp.srv.world. root.srv.world. (
;; update serial number
2023122003 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
IN NS dlp.srv.world.
;; add secondary server
IN NS ns.server.education.
IN A 172.16.0.82
IN MX 10 dlp.srv.world.
dlp IN A 172.16.0.82
www IN A 172.16.0.83
root@dlp:~ # rndc reload server reload successful |
| [2] | Configure on DNS Secondary Host. |
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root@ns:~ #
vi /usr/local/etc/namedb/external-zones.conf // add target zone info // IP address is the primary server's one
zone "srv.world" IN {
type secondary;
primaries { 172.16.0.82; };
file "/usr/local/etc/namedb/secondary/srv.world.wan";
};
root@ns:~ #
root@ns:~ # rndc reload
ls -l /usr/local/etc/namedb/secondary total 5 -rw-r--r-- 1 bind bind 377 Dec 20 11:18 srv.world.wan # zone file has been transferred
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