Configure DNS as a Slave Server2012/05/30 |
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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".
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| [1] | Write config in Zone file on Master DNS. |
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[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
2012053003 ;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. |
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[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;
};
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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