shell 网络扫描

while true
do

cat /var/log/httpd/access_log | awk ‘{print $1}‘| sort | uniq -c >tmp.txt
cat tmp.txt| while read line
do
pv=echo $line | awk ‘{print $1}‘
ipaddress=echo $line | awk ‘{print $2}‘

if [ "$pv" -gt 100 ]
then
iptables -I INPUT -s ${ipaddress} -j DROP

  echo ${ipaddress}

fi

done
sleep 20
done

shell 网络扫描

原文：http://blog.51cto.com/11381919/2097040