= DNS Forwarder =

Install a DNS forwarder on CentOS 6.3:
 * yum install bind

Edit /etc/named.conf:
{{{#!highlight bash
options {
        directory "/var/named";
        forwarders { 8.8.8.8; 8.8.4.4; };
};

zone "example.lan" in {
  type forward;
  forwarders { 192.168.3.56; };
};

zone "xpto.lan" in {
  type forward;
  forwarders { 10.0.3.3; };
};

}}}

Run the following commands:
 * service named start
 * chkconfig named on
 * netstat -a -n | grep ":53" | grep LISTEN