computer:2:know

how to handle denial of service attack on port 443 - linux webserver

 #!/bin/bash

# findDoSVisotor

#

# useful if CPU is very high .. find out the visitor, which causes the most

# network activity

#

netstat -lanp |grep ":443" | awk {' print $5'} | cut -d: -f 1 |sort |uniq -c | sort -nk 1





###########################





#!/bin/bash

# blockIPaddress.sh

#

# block IP address to access 443

#

if [ -z "$1" ]

  then

        echo "usage: blockIPaddress.sh <IP>"

        exit

fi



iptables -A INPUT -p tcp --dport 443 -i eth0 -s $1   -j DROP

Computer and IT knowledge - things to know

how to handle denial of service attack on port 443 - linux webserver