#!/bin/sh
# /etc/cron.hourly/clock-sync

# a script to sync the clock to the network ntpd server

source /etc/functions-internet

#initialize variables and locations
NTPDATE=/usr/sbin/ntpdate
# insert the appropriate local box name; box should be listed in /etc/hosts to avoid DNS issues, otherwise use an actual IP address
NTPSERVER=boxname

# is this box running the ntp daemon? if yes then don't bother with syncing
if [ "`ps ax | grep 'ntpd'`" = "" ] ; then
  # not running the ntpd, run an internet ping test.
  # if the LAN gateway server is not online then ntpd probably is not active
  Ping_Test &> /dev/null
  if [ "$PINGTEST" = "FAILED" ] ; then # not connected
    Exit_Script clock-sync
  fi
  # if we got a good internet ping test then the local ntpd server is online too: same box
  $NTPDATE -s $NTPSERVER &> /dev/null
fi