Shield

AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS. It provides two tiers of protection:

AWS Shield Standard

  • Automatically included at no extra cost for all AWS customers

  • Protects against common, frequently occurring network and transport layer DDoS attacks

  • Integrated with services like:

    • Amazon CloudFront

    • Amazon Route 53

    • Elastic Load Balancing (ELB)

    • AWS Global Accelerator

  • Provides always-on detection and automatic inline mitigations.

AWS Shield Advanced

  • Premium DDoS protection service (additional cost)

  • Enhanced protection features:

    • Protection against larger and more sophisticated attacks

    • Real-time visibility into attacks

    • Integration with AWS WAF (Web Application Firewall)

    • 24x7 access to AWS DDoS Response Team (DRT)

    • Financial protection against DDoS-related spikes in charges

Key Benefits

  1. Cost Efficiency:

    • Standard tier included free

    • Advanced tier includes cost protection against usage spikes

  2. Integration:

    • Seamless integration with other AWS services

    • Works with AWS WAF for enhanced security

    • CloudWatch metrics for monitoring

  3. Expertise:

    • Access to AWS DRT (Advanced tier)

    • AWS-recommended DDoS resilient architectures

    • Proactive mitigation of complex attacks

  4. Protection Types:

    • Layer 3 (Network) protection

    • Layer 4 (Transport) protection

    • Layer 7 (Application) protection (with Advanced)

    • Protection against both known and emerging threats

Common Use Cases

  • Protecting web applications

  • Safeguarding DNS services

  • Securing gaming servers

  • Protecting enterprise applications

  • APIs and microservices protection

Best Practices

  1. Enable AWS Shield Standard for basic protection

  2. Consider Advanced for:

    • Business-critical applications

    • Applications requiring 24/7 availability

    • Systems processing sensitive transactions

  3. Combine with AWS WAF for comprehensive protection

  4. Implement DDoS-resilient architecture

  5. Regular monitoring and testing of protection measures

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