Fedora 19
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DNS Slave Server
2013/07/03
 
Configure DNS as a Slave Server. It's easy to set up it.
Following example shows an environment that master DNS is "dlp.srv.world", Slave DNS is "ns.example.host".
[1] Write config in Zone file on Master DNS.
[root@dlp ~]#
vi /etc/named.conf
# add IP address of slave DNS

allow-transfer { localhost;
172.16.0.85;
};
[root@dlp ~]#
vi /var/named/srv.world.wan
$TTL 86400
@   IN  SOA     dlp.srv.world. root.srv.world. (
# update serial

        2013070303  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
        IN  NS      dlp.srv.world.
# add name server

        IN  NS      ns.example.host.
        IN  A       172.16.0.82
        IN  MX 10   dlp.srv.world.

dlp     IN  A       172.16.0.82

[root@dlp ~]#
systemctl restart named.service

[2] Configuration on Slave DNS.
[root@ns ~]#
vi /etc/named.conf
# add lines like below

    zone "srv.world" IN {
        type slave;
        masters { 172.16.0.82; };
        file "slaves/srv.world.wan";
        notify no;
    };

[root@ns ~]#
systemctl restart named.service

[root@ns ~]#
ls /var/named/slaves

srv.world.wan
# zone file in master DNS has been just transfered
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