Understanding DNS

Short summary

DNS translates domain names to IP addresses but is the internet's critical security chokepoint and performance engine. Attackers exploit DNS through cache poisoning and tunneling; DNSSEC and Protective DNS are essential defenses that block attacks at the earliest stage. Intelligent DNS routing optimizes performance by directing users to geographically closest servers and enables automatic failover for resilience.

• •DNS is the internet's address book and primary security chokepoint—almost every transaction starts with a DNS query
• •Common attacks include cache poisoning and DNS tunneling; DNSSEC adds cryptographic signatures to prevent tampering
• •DNS enables performance optimization through geographic routing and automatic failover when servers fail

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