nsbin/cron/ping_pong

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#HOSTS="www.spiegel.de www.lernen.de www.isc.org B.ROOT-SERVERS.NET"
HOSTS="www.heise.de www.netcraft.com "
STATUS=offline
for myh in $HOSTS; do
ping -c1 $myh >/dev/null 2>&1 && STATUS=online
done
if [ "$STATUS" = offline ]; then
echo 'Offline.'`date`
fi