AWS Shield DDoS

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AWS Shield is the DDoS protection service with two tiers: Standard (free, automatic layer 3/4 protection on CloudFront/Route53/ELB) and Advanced (managed protection, layer 7 protection, DDoS response team, cost guarantees). Understand DDoS attack types (volumetric, protocol, application-layer), mitigation strategies (traffic filtering, rate limiting, IP reputation), and integration with WAF (web application firewall). Why it matters: a single DDoS attack can take down a service and cost $100k+ in downstream damage. Large companies mandate Shield Advanced for critical services. Learning path: 1 week basics (attack types, Standard protection), 1 week intermediate (Advanced features, WAF integration), ongoing production monitoring.

AWS Shield DDoS이란

AWS Shield is the DDoS (Distributed Denial of Service) protection service. DDoS attacks flood your application with traffic to make it unavailable. Attackers send millions of requests/second from botnets, hoping to overwhelm your servers. Shield mitigates these attacks automatically. Two tiers: Shield Standard (automatic, free protection on CloudFront, Route53, ELB for layer 3/4 attacks) and Shield Advanced (managed service, layer 7 application attack protection, 24/7 DDoS Response Team, $3k/month).

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AWS ShieldAWS WAFCloudFrontAWS Route53DDoS Response TeamCloudWatchAWS Lambda

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Cloud Security Aws Lambda

💰 지역별 연봉

지역	주니어	미들	시니어
USA	$80k	$125k	$175k
UK	£48k	£75k	£115k
EU	€52k	€80k	€120k
CANADA	C$85k	C$120k	C$165k

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AWS Certified Security, Specialty AWS Certified Solutions Architect, Professional SANS SEC504, Cloud Security Essentials

🎯 AWS Shield DDoS을(를) 활용하는 직무

Cloud Architect

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Cloud Security Aws Waf Security Cybersecurity

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Shield Standard vs Advanced, do I need Advanced?

Standard: free, protects CloudFront/Route53/ELB from layer 3/4 DDoS (volumetric attacks). Advanced: $3k/month, layer 7 protection (application attacks), 24/7 DDoS Response Team, cost guarantee (refund if traffic overages). For critical services (payment, auth, SaaS), use Advanced. For non-critical, Standard sufficient.

What types of DDoS attacks exist?

Layer 3/4 (volumetric): UDP floods, DNS amplification, SYN floods. Layer 7 (application): HTTP floods, slowloris, cache-busting attacks. Shield Standard blocks layer 3/4; Shield Advanced + WAF blocks layer 7. Most costly attacks are layer 7 (slow, harder to detect).

How does Shield Advanced differ from WAF?

Shield: DDoS protection (volume-based attacks, botnets). WAF: web application firewall (layer 7, rule-based, blocks malicious requests based on IP/headers/body). Use both: Shield for volume, WAF for smart filtering. Complementary, not redundant.

Can I test my DDoS protection?

Yes, using AWS DDoS Simulation (authorized testing with AWS approval). Contact your AWS account team. Production load tests simulating DDoS help validate your architecture but require AWS sign-off.

What's the cost of a DDoS attack without Shield Advanced?

AWS charges for CloudFront/DDoS traffic normally. A 100 Gbps attack might cost $10k+ in traffic charges alone. Shield Advanced includes cost guarantee: if attack exceeds protection cost, AWS reimburses.

Should CloudFront be in front of everything?

For public-facing services (APIs, websites): yes, CloudFront + Shield Standard provides layer 3/4 DDoS protection. For internal services: no, use VPC endpoints. For hybrid: sensitive APIs in VPC, public APIs behind CloudFront.

How do I respond to an active DDoS attack?

Shield Standard: automated mitigation (AWS infrastructure absorbs attack). Shield Advanced: contact DDoS Response Team (24/7 support) for custom mitigation rules, traffic rerouting, and cost negotiation. Response time: <15 minutes for Advanced customers.

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