How to change DNS records on GoDaddy's nameservers

Introduction

When using GoDaddy's nameservers, you may need to modify your zonefiles on the GoDaddy nameservers. Their documentation gives steps needed to modify the DNS records.

Procedure 

Please reference GoDaddy's documentation regarding making changes:

Manage DNS zone files

Add an A record

Change an MX record

Change a CNAME record

PTR (rDNS) record on shared servers

PTR (rDNS) records on dedicated servers