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Byte Quality Assurance Team
Byte Quality Assurance Team
May 26, 2021 · Fundamentals

Fundamentals of DNS: Concepts, Resolution Process, Message Format, and Practical Examples

This article explains the basic concepts of the Domain Name System, describes how DNS resolution works through resolvers, root, TLD and authoritative servers, details the DNS message structure, shows common query types, and provides practical Linux and Python examples including EDNS/ECS extensions.

DNSDNS ResolverDomain Name System
0 likes · 12 min read
Fundamentals of DNS: Concepts, Resolution Process, Message Format, and Practical Examples
Qunar Tech Salon
Qunar Tech Salon
Oct 27, 2017 · Fundamentals

Understanding DNS, Intelligent DNS, EDNS, and HTTP-DNS in Qunar Architecture

This article explains the fundamentals of DNS, details the Qunar DNS architecture and its intelligent DNS, EDNS, and HTTP-DNS features, and describes how these technologies improve resolution speed, balance traffic, enable automatic failover, and prevent DNS hijacking.

DNSDomain Name SystemEDNS
0 likes · 5 min read
Understanding DNS, Intelligent DNS, EDNS, and HTTP-DNS in Qunar Architecture