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Lectures 105 • 40 slides
Narration
Episode 105 Slide 1: Domain and DNS Management
Phase 8: Infrastructure Maintenance and Reliability
Today's Theme
- The Internet's address system
- The mechanism of name resolution
What You Will Learn
- DNS Mechanism
- Record Types (A, CNAME, MX, etc.)
- TTL Settings
- Introduction to Route 53, Cloudflare
Why is it important?
- The entrance for users to access the site
- Possibility of complete service outage due to misconfiguration
- Deeply involved in security
flowchart TD
A[User] --> B[Enter URL in browser]
B --> C[Query DNS Server]
C --> D[Get IP Address]
D --> E[Access Web Server]
E --> F[Display Web Page]
G[DNS Misconfiguration] --> H[Name Resolution Failure]
H --> I[Complete Service Outage]
style G fill:#ff9999
style H fill:#ff9999
style I fill:#ff9999
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