- Bash Script - Protect your server from DDos (Distributed Denial of Service) Attack

What is DDos attack:
On the Internet, a distributed denial-of-service (DDoS) attack is one in which a multitude of compromised systems attack a single target, thereby causing denial of service for users of the targeted system. The flood of incoming messages to the target system essentially forces it to shut down, thereby denying service to the system to legitimate users.

DDoS-Deflate is a very simple but effective bash script which monitors the numbers of connection made by a particular ip address using 'netstat' command and if the number of connection from a single ip address reaches a particular limit (150 default) it will block that ip address using simple iptables rules for defined time period.

DDoS-Deflate Installation:
Open the terminal and type following command:
wget http://www.inetbase.com/scripts/ddos/install.sh
chmod 0700 install.sh
./install.sh
After successful installation, you can find the DDoS-Deflate configuration file at: /usr/local/ddos/ddos.config
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source:http://linuxpoison.blogspot.com/2012/12/13578167755274.html

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