Introduction to DNS 3 Definition and Purpose of DNS History of DNS Documentation Overview of DNS Hierarchy
DNS Concepts 8 DNS Protocols and Ports DNS Records and Record Types DNS Zones and Zone Files DNS Resolvers Time to Live (TTL) Fully Qualified Domain Names (FQDN) Reverse DNS (PTR Records) Wildcard Records
DNS Architecture and Components 7 DNS Servers DNS Resolvers and Recursive Queries Authoritative DNS Servers Root Servers TLD (Top-Level Domain) Servers Secondary DNS Servers DNS Forwarders
DNS Security 5 DNSSEC (Domain Name System Security Extensions) DNS Spoofing and Cache Poisoning DNS Firewalls Monitoring and Auditing DNS Traffic DANE (DNS-Based Authentication of Named Entities)
DNS Troubleshooting and Tools 5 Common DNS Issues DNS Troubleshooting Tools Using nslookup and dig DNS Query Analysis DNS Logging and Diagnostics
DNS Configuration and Management 6 Setting up a DNS Server Configuring DNS Records Managing DNS Zones DNS Delegation Configuring DNS Forwarders DNS Monitoring and Alerts
DNS in Cloud Computing 4 AWS Route 53 Google Cloud DNS Azure DNS Managing DNS in Hybrid Cloud Environments
DNS and Domain Registration 4 Registering Domain Names Managing Domain Registrars Domain Transfer Process Domain WHOIS Information
