Tutorials

DNS Basics

These tutorials cover the fundamentals of DNS - covering a diverse number of topics.

• What is DNS?
  A basic introduction to DNS.

• What is DNS? - Flash Video
  A basic introduction to DNS and how it works, in an easy to understand Flash video.

• How DNS Works
  An explaination of the process through which DNS works.

• Resolving Name Server
  Explains what the Resolving Name Server is and how it is essential to DNS.

• TLD Name Server
  Explains what the Top Level Domain Name Server is and how it is essential to DNS.

• Authoritative Name Server
  Explains what the Authoritative Name Server is and how it is essential to DNS.

• TTL - Time to Live
  Explains DNS Caching and the TTL or Time to Live.

• Round Robin
  Explains Round Robin DNS, how it is configured, and how it works.

DNS Record Types

• NS Record
  Explains what NS records are and how they work.

• A Record
  Explains what an A record is and how it works.

• AAAA Record
  Explains what an AAAA record is and how it works.

• CNAME Record
  Explains CNAME records.

• MX Record
  Explains MX records.

• PTR Record
  Explains PTR records.

• TXT Record
  Explains TXT records.

• Wildcard Record
  Explains Wildcard records.

• SRV Record
  Explains SRV records.

• SOA Record
  Explains SOA records.

• SPF Record
  Explains SPF records.

Advanced DNS

• IPv4
  Explains IPv4

• IPv6
  Explains IPv6

• IP Anycast
  Explains IP Anycast.

• Reverse DNS
  Explains Reverse DNS.