Overview

This document describes best practices for working with Anti-DDoS Service and provides operational guidelines that you can follow when using this service.

**Table 1** Best practices
Component	Reference
Post-attack handling	Accessing a Black-holed Server Through ECS
	Using AAD to Identify Attack Types
	Migrating Website Services Between Two AAD Instances
Origin server IP addresses	Using the TOA Module to Obtain the Actual Source IP Addresses of Requests
Improving protection capabilities	Using the Scheduling Center to Implement Tiered Traffic Scheduling.
Joint protection	Using ELB and CNAD Advanced to Improve the DDoS Protection Capabilities of ECSs
	Using WAF, ELB, and CNAD Advanced to Improve Website Service Security
	Using WAF and AAD to Protect Domain Names
	Using CDN and AAD to Protect Dynamic and Static Resources