dnsenum-reverserange.sh

#!/bin/bash

function usage() {
    echo "Usage: "$0" <range_file> <domain> [<dns_server>]"
    if [ -n "$1" ] ; then
	echo "Error: "$1"!"
    fi
    exit
}

if [ $# -lt 2 ] || [ $# -gt 3 ] ; then
    usage
fi

file=$1
domain=$2
dnsserver=$3

for ip in $(cat $file) ; do
	echo $ip
	./dnsenum-reverse.sh $ip $domain $dnsserver
done

exit