#!/usr/bin/perl -w

    use strict;
    use Net::DNS;

    # Create the update packet.
    my $update = Net::DNS::Update->new('evil.zz');

    # Prerequisite is that no A records exist for the name.
   $update->push(prerequisite => nxrrset('hacker11.evil.zz. A'));

    # Add two A records for the name.
   $update->push(update => rr_add('hacker11.evil.zz. 86400 A 127.0.0.1'));
   # $update->push(update => rr_add('foo.example.com. 86400 A 172.16.3.4'));

    # Send the update to the zone's primary master.
    my $res = Net::DNS::Resolver->new;
    $res->nameservers('192.168.200.113');

    my $reply = $res->send($update);

    # Did it work?
    if ($reply) {
        my $rcode = $reply->header->rcode;
        print 'Update ', $rcode eq 'NOERROR' ? "succeeded\n" : "failed: $rcode\n";
    } else {
        print 'Update failed: ', $res->errorstring, "\n";
	}