DNS Security: Defending Against Cache Poisoning, Spoofing, and DDoS Amplification

Short summary

DNS security requires cryptographic integrity and traffic filtering to defend against cache poisoning, spoofing, and DNS amplification attacks that can cripple networks. Google Cloud's Cloud Armor provides edge-layer DDoS mitigation and AI-driven analysis to detect malicious domains. The post covers attack vectors and defense mechanisms for infrastructure resilience.

• •DNS attacks (poisoning, spoofing, amplification) enable volumetric DDoS at scale
• •Google Cloud's layered defense uses Cloud Armor to scrub attacks at the edge
• •AI analysis identifies lookalike, typo-squatted, and phishing domains

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