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DNS Deep Dive
Section 1 - Introduction
What is DNS? (3:27)
The main functions of DNS (1:19)
Section 2 - Name Space
Domain Name Format (5:41)
The DNS Tree (3:52)
Root Servers (3:58)
TLD Servers (4:56)
Authoritative Name Servers (4:29)
Section 3 - Name Resolution
Local Name Resolution (11:54)
DNS Resolvers (4:49)
Iterative Name Resolution (2:08)
Recursive Name Resolution (2:08)
Caching (11:29)
DNS Name Resolution Workflow (3:03)
Reverse Name Resolution (9:13)
Section 4 - Name Registration
Domain Name Registration Hierarchy (2:27)
Domain Name Registration Process (2:00)
Choosing a TLD (3:08)
Choosing a Second-Level Domain (4:11)
Choosing a Registrar (2:44)
EPP Status Codes (3:34)
Section 5 - DNS Data Storage
Zones & Resource Records (2:54)
SOA Record (3:53)
NS Record (2:45)
A & AAAA Records (2:47)
PTR Record (3:43)
CNAME Record (3:25)
TXT Record (2:00)
Section 6 - DNS Configuration
Architecture (2:37)
Configuring the Client (15:07)
Configuring the Cache-Only DNS Server (21:09)
Configuring the Authoritative DNS Server (21:30)
Configuring DNS High Availability (19:19)
Section 7 - DNS Protocol Analysis
DNS Messages (3:21)
RCODES (2:25)
The DNS Header (2:59)
Capturing & Analysing DNS Traffic (10:37)
Constructing DNS Packets (15:07)
Section 8 - DNS Troubleshooting
Troubleshooting Methodology (4:31)
Troubleshooting DNS Configuration Issues (9:09)
Troubleshooting DNS Latency Issues (10:15)
Section 9 - DNS Security
DNS Cache Poisoning Attack (5:13)
NXDOMAIN Attack (6:48)
DNS Query Flood Attack (6:59)
Phantom Domain Attack (1:42)
Section 10 - Conclusion
Summary (1:05)
A & AAAA Records
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