#!/bin/bash
 
queryHost=foo.domain.local
host=10.0.0.1
ldapUser=foo
ldapPass=bar
 
for a in $(ldapsearch -LLL -x -H ldap://$host:3268 -D "$ldapUser" -w "$ldapPass" -b "ou=Domain Controllers,dc=domain,dc=local" "(sAMAccountType=805306369)" name|egrep '^name:'| awk '{print $2}' ); do
        echo -n -e "$a: \t"
        if (dig @$a A $queryHost >  /dev/null 2>&1); then
                dig @$a A $queryHost | grep -v -e '^;' -e '^$' | awk '{print $5}'
        else
                echo "DNS Dienst nicht erreichbar"
        fi
echo "---------------------------"
done;