echo "forward-zone:"
echo " name: ."
for forwarder ; do
if expr "${forwarder}" : "^[0-9:.]\{1,\}$" >/dev/null ; then
if expr "${forwarder}" : "^[0-9:.a-fA-F]\{1,\}$" >/dev/null ; then
echo " forward-addr: ${forwarder}"
else
echo " forward-host: ${forwarder}"