A DNS Registrar is authorized by ICANN to sell domain names. They essentially do the admin work required for the Domain Name System. Registrars have become important because they are private companies and they have started to become more political in their policies for maintaining clients for DNS services.
CNames map subdomains to domain names. You can point MAIL.domain.com to the Gmail portal for your company, or SALES.domain.com to SalesForce.com. This allows you to use an easy to remember naming strategy for users to […]