#!/bin/bash

HOSTNAME=$1

COUNT=`/bin/echo $HOSTNAME|/bin/grep -o '\.'|/usr/bin/wc -l`

if [ "$COUNT" -lt '2' ]; then
  # second level domain, don't munge just return
  /bin/echo -n $HOSTNAME
  exit 0
elif [ "$COUNT" -ge '2' ]; then
  # third or higher level domain, strip first level off
  /bin/echo -n "$HOSTNAME" | /bin/sed 's/[^.]*./\*\./'
  exit 0
else
  # unexpected. hostname not set?
  /bin/echo -n $HOSTNAME
  exit 0
fi