export ad_ip="10.15.7.15"
export ad_user="administrator@itdrde.local"
export ad_password="XXXXXXXXX"
Computers are also Users
ldapsearch -H ldap://$ad_ip:389 -x -D $ad_user -w $ad_password -b "DC=itdrde,DC=local" \
-s sub -a always -z 1000 "(objectClass=user)" "serviceClassName" "serviceDNSName" "objectClass"