I use 123-reg as my domain registrar, I found this DNS Management Guide on there site.
Its not a very big book; but it gives a nice quick overview to DNS, and gives examples of how to use different records.
A records, CNAME records, MX records, nameservers…… confused?
What will this guide help me with?
This guide contains information on the following areas:
- What is DNS?
- What are subdomains?
- What are nameservers?
- How do I check my nameservers?
- How do I change my nameservers?
- Setting up an A record
- Setting up a CNAME record
- Setting up a TXT record
- Setting up an SPF record
- Setting up an MX record
- How do I point to my own mail server?