Configure Slave DNS Server2017/12/17 |
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Configure Slave DNS Server.
The following example shows an environment that Master DNS is [dlp.srv.world], Slave DNS is [ns.example.slave].
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| [1] | Configure Master DNS server. |
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[root@dlp ~]#
vi /etc/named.conf # add an IP address of slave DNS server 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
2017121703 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
IN NS dlp.srv.world.
# add Slave server
IN NS ns.example.slave.
IN A 172.16.0.82
IN MX 10 dlp.srv.world.
dlp IN A 172.16.0.82
[root@dlp ~]# systemctl restart named |
| [2] | Configure Slave DNS server. |
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[root@ns ~]#
vi /etc/named.conf # add lines like follows
zone "srv.world" IN {
type slave;
masters { 172.16.0.82; };
file "slaves/srv.world.wan";
notify no;
};
systemctl restart named [root@ns ~]# ls /var/named/slaves srv.world.wan # zone file from Master server has been transfered
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