This is a beta course, so its structure, chapters, and examples may continue to change.
DNS Management
Outline
1. DNS Basics
- How DNS works
- Overview of record types
- TTL (Time To Live)
2. Common DNS Record Types
-
A record
- IPv4 resolution
- How to add an A record
- Typical use cases
-
AAAA record
- IPv6 resolution
- Enabling IPv6 support
-
CNAME record
- Alias records
- When and when not to use
- Differences from A records
-
MX record
- Mail server configuration
- Priority settings
-
TXT record
- Text records
- SPF, DKIM, DMARC
- Domain verification
-
SRV record
- Service records
- When to use them
-
NS record
- Name server records
- Delegating subdomains
3. Adding and Managing Records
- Add records in the Cloudflare dashboard
- Edit and delete records
- Bulk import DNS records
- Record priority considerations
4. DNS Performance
- Speeding up resolution
- Proxied (orange cloud) vs DNS-only (gray cloud)
- DNS load balancing
- Geo routing
5. Advanced DNS Features
-
DNS Security
- DNSSEC setup
- DNS filtering and blocking
-
DNS Analytics
- Query logs
- Resolution stats
6. FAQs
- Record not taking effect
- CNAME conflicts
- Email service setup issues
- Slow DNS resolution
7. Summary
- Best practices for DNS management
- Common configuration examples