BIND : Configure Secondary Server2022/11/18 |
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Configure DNS Secondary Server (Slave Server).
On this example, it shows to configure DNS Secondary Server [ns.server.education] (192.168.100.85) that
DNS Master 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 Master Server Host. |
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[root@dlp ~]#
vi /etc/named.conf
.....
.....
options {
listen-on port 53 { any; };
listen-on-v6 { any; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
secroots-file "/var/named/data/named.secroots";
recursing-file "/var/named/data/named.recursing";
allow-query { localhost; internal-network; };
# add secondary server to allow to transfer zone files
allow-transfer { localhost; 192.168.100.85; };
.....
.....
[root@dlp ~]#
vi /var/named/srv.world.wan
$TTL 86400
@ IN SOA dlp.srv.world. root.srv.world. (
# update serial if update zone file
2022111803 ;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 onDNS Secondary Server Host. |
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[root@ns ~]#
vi /etc/named.conf # add target zone info # for IP address, it's the Master server's IP address
zone "srv.world" IN {
type slave;
masters { 172.16.0.82; };
file "slaves/srv.world.wan";
notify no;
};
[root@ns ~]#
[root@ns ~]# systemctl restart named
ls /var/named/slaves srv.world.wan # zone file transfered
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