BIND : Configure Secondary Server2024/04/29 |
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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 Server Host. |
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root@dlp:~#
vi /etc/bind/named.conf.options
.....
.....
options {
directory "/var/cache/bind";
.....
.....
allow-query { localhost; internal-network; };
// add secondary server to allow to transfer zone files
allow-transfer { localhost; 192.168.100.85; };
allow-recursion { localhost; internal-network; };
.....
.....
root@dlp:~#
vi /etc/bind/srv.world.wan
$TTL 86400
@ IN SOA dlp.srv.world. root.srv.world. (
;; update serial number
2024042903 ;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:~# systemctl restart named |
| [2] | Configure on DNS Secondary Server Host. |
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root@ns:~#
vi /etc/bind/named.conf.external-zones // add target zone info // IP address is the primary server's one
zone "srv.world" IN {
type secondary;
primaries { 172.16.0.82; };
file "/etc/bind/secondary/srv.world.wan";
};
root@ns:~#
root@ns:~# mkdir /etc/bind/secondary root@ns:~# chown bind /etc/bind/secondary root@ns:~# systemctl restart named
ll /etc/bind/secondary
total 12
drwxr-sr-x 2 bind bind 4096 Apr 29 11:32 ./
drwxr-sr-x 3 root bind 4096 Apr 29 11:30 ../
-rw-r--r-- 1 bind bind 441 Apr 29 11:32 srv.world.wan
# zone file has been transferred
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