ali@Juventus:~$ cat /etc/pdnsd.conf 
// $Id: pdnsd.conf.in,v 1.4 2000/11/11 20:32:58 thomas Exp $

global {
        perm_cache=512;
        cache_dir="/var/cache/pdnsd";
        max_ttl=604800;
        run_as="pdnsd";
        paranoid=on;
        status_ctl=on;
        server_port=53;
        server_ip="127.0.0.1";
}

server {
        label= "ISP1";
        ip=10.40.155.33;
        timeout=10;
        proxy_only=on;
}

server {
        label= "ISP2";
        ip=10.40.155.34;
        timeout=10;
        proxy_only=on;
}