BIND : Configure Slave DNS Server2019/07/16 |
Configure BIND as a Slave DNS Server.
The following example shows an environment that master DNS is [172.16.0.82], Slave DNS is [slave.example.host].
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[1] | Configure DNS master server. |
root@dlp:~#
vi /etc/bind/named.conf.options options { directory "/var/cache/bind"; // If there is a firewall between you and nameservers you want // to talk to, you may need to fix the firewall to allow multiple // ports to talk. See http://www.kb.cert.org/vuls/id/800113 // If your ISP provided one or more IP addresses for stable // nameservers, you probably want to use them as forwarders. // Uncomment the following block, and insert the addresses replacing // the all-0's placeholder. // forwarders { // 0.0.0.0; // }; allow-query { localhost; 10.0.0.0/24; }; # add a range you allow to transfer zone files allow-transfer { localhost; 10.0.0.0/24; 172.16.0.80/29; }; allow-recursion { localhost; 10.0.0.0/24; }; //======================================================================== // If BIND logs error messages about the root key being expired, // you will need to update your keys. See https://www.isc.org/bind-keys //======================================================================== dnssec-validation auto; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; };root@dlp:~# rndc reload server reload successful |
[2] | Configure DNS slave server. |
root@slave:~#
vi /etc/bind/named.conf.external-zones # add settings like follows zone "srv.world" { type slave; masters { 172.16.0.82; }; file "/etc/bind/slaves/srv.world.wan"; }; mkdir /etc/bind/slaves root@slave:~# chown bind. /etc/bind/slaves root@slave:~# rndc reload server reload successful root@slave:~# ls /etc/bind/slaves srv.world.wan # zone files in master DNS has been just transfered
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