aliases {ttl} addr-class CNAME Canonical name
ucbmonet IN CNAME monet
The Canonical Name resource record, CNAME, specifies an alias for the official, or canonical, hostname. This record should be the only one associated with the alias name. All other resource records should be associated with the canonical name, not with the alias. Any resource records that include a domain name as their value (such as NS or MX) should list the canonical name, not the alias.Aliases are also useful when a host changes its name. In that case, it is usually a good idea to have a CNAME record so that people still using the old name get to the right place.