Dynamic_DNS.txt

# vi /etc/named.conf

controls {
inet 127.0.0.1 port 953
allow {127.0.0.1;} keys {"rndckey";};
};
zone "example.com" IN {
type master;
file “example.for";
allow-update { key rndckey; } ;
};
zone "0.168.192.in?addr.arpa" IN {
type master;
file “example.rev";
allow-update { key rndckey; } ;
};

================

DHCP

--------

[root@dns ~]# vi /etc/dhcpd.conf

To add the options

include "/etc/rndc.key";

ddns-domain “example.com";

ddns-update-style interim;

ddns-rev-domain "0.168.192.in-addr.arpa";

ddns-updates on; allow Dynamic DNS

authoritative;

#master server for this domain

# Allow only the DHCP server to update DNS

ignore client-updates;

allow unknown-clients;zone 0.168.192.in-addr.arpa.

{

primary 192.168.0.252;

key "rndckey";

}

zone techbrown.com. {

primary 192.168.0.252;

key "rndckey";

}

range 192.168.0.20 192.168.0.59;