gistfile1.bat

#! /bin/bash
#(c)2011 Alberto Luebbert alberto (At) ideashappy.com
#constant check network connectivity, on lost
#re-start Cards if lost are "more large"
#reboot the system.
#the script check connectivity by ping google
CONNECTION=1
IFDOWN="/sbin/ifdown"
IFUP="/sbin/ifup"
REBOOT="/sbin/reboot"
PINGIP="64.233.169.103"
ETHS="eth0 eth1 eth2 eth3"
for (( ; ; )) do
if ping -c 1 $PINGIP > /dev/null;then
                CONNECTION=0
        else
if [ $CONNECTION = 0 ]; then
CONNECTION=1
                        for ETH in $ETHS
                        do
                           $IFDOWN $ETH
                           $IFUP $ETH
                        done
fi
if [ $CONNECTION = 1 ]; then
                        $REBOOT
                fi
fi
sleep 45
done