Domain Name System (DNS)

Table of Contents

Domain Name System (DNS)

PPT Slide

Why Names?

Name Hierarchy

Name Hierarchy

Name Hierarchy (Cont)

Top Level Domains

Server Hierarchy

Server Hierarchy (example)

Server Hierarchy (Cont)

Server Hierarchy: Example

Server Hierarchy: Better

Name Resolution (Cont)

Name Resolution

Name Resolution (Cont)

Name Resolution (Cont)

DNS Optimization

Abbreviations

DNS Message Format

Format (Cont)

DNS Message Format

DNS Message Format (Cont)

Types of DNS Entries

Resource Record Types

Summary

Informal Exercises

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