Networking
Beginner
DNS Explained – Complete Beginner to Advanced Guide
A complete beginner-to-advanced guide teaching how DNS works, domain name resolution, DNS records, nameservers, DNS security, DNS troubleshooting, cloud DNS, and real-world DNS infrastructure.
20 chapters
6h 55m
4.8
(114)
What you'll learn
- Introduction to DNS
- History and Evolution of DNS
- Understanding How DNS Works
- DNS Architecture and Hierarchy
- Domain Names and TLDs
- DNS Records Explained
- Recursive and Authoritative DNS Servers
- DNS Resolution Step-by-Step
Course content
20 chapters · 6h 55m- 1 Introduction to DNS 15 min
- 2 History and Evolution of DNS 15 min
- 3 Understanding How DNS Works 20 min
- 4 DNS Architecture and Hierarchy 20 min
- 5 Domain Names and TLDs 15 min
- 6 DNS Records Explained 20 min
- 7 Recursive and Authoritative DNS Servers 20 min
- 8 DNS Resolution Step-by-Step 20 min
- 9 DNS Caching and Performance 20 min
- 10 DNS and Web Hosting 20 min
- 11 DNS Security Basics 20 min
- 12 DNS Over HTTPS (DoH) and DNS Over TLS (DoT) 20 min
- 13 DNS in Cloud Computing 20 min
- 14 CDN and Global DNS Routing 20 min
- 15 Reverse DNS and PTR Records 20 min
- 16 DNS Troubleshooting Tools 20 min
- 17 DNS for Email Systems 25 min
- 18 Enterprise and Large-Scale DNS 25 min
- 19 DNS Interview Questions and Labs 30 min
- 20 Build and Configure a Real DNS Infrastructure 30 min