How to prevent DDOS attack

Different people are sitting there in the world to make DDOS attacks. This kind of attack main done by web hosting company to crush other hosting servers. You can prevent DDOS attack with the following steps:

• 1. use iptables
• 2. Use log rotator
• see access log and block the attacker's IP address,

Let me know what I missed... :)
See the book OpenCart 1.4 Template Design Cookbook.
See the book Joomla Mobile Development Beginners Guide

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Wordpress Plugins:

1. Real-Time Health Data from Every Where:WP plugin to display real-time health data & increase sale by promoting user specific products according to health information: garazlab.com.
2. Woocommerce Stock Notification Builder:Sends desktop, mobile & email notifications with full customization.Build your own product notification system with it: garazlab.com.

Opencart Extensions:

1. Product Based Quantity Wise Shipping: Find it here.
2. OpenSSLCOMMERZ: integrate SSLCOMMERZ with opencart: Find it here.
3. Fine Search v.1.0 - Improves Opencart search feature to find relevant: Find it here.
4. Opensweetcaptcha - An easy way to generate attractive captcha for your system!: Find it here.
5. Custom Field Product - add unlimited custom fields to the product form: Find it here.
6. Formcaptcha - add captcha on the register page: Find it here.

My Books:

1. OpenCart 1.4 Template Design Cookbook.
2. Joomla Mobile Development Beginners Guide