In linux ,
/etc/hosts stores ip aliases.
But I want to create a hostname without knowing its IP address.
In Amazon RDS , it's endpoint is a long domain name such as :
my-db.ooxxooxxooxxoo.ap-northeast-1.rds.amazonaws.com . It doesn't suggest connecting by IP (because it may change).
In such situation , how do I resolve a simple
db string to this domain name ? WITHOUT any outer help , such as DNS CNAME or Route53 solution.