If you are within a company, then you need to talk to the person responsible for maintaining your company's DNS.
If you are a private person with your own connection to the Internet, you can use Cloud DNS
] to associate your domain name to an IP address. To do so, you must have your domain registrar set your domain name's NameServer parameters to point to Cloud DNS's Domain Name Servers.
1. You ask your domain registrar to set the NameServer parameters for your domain to:
2. You register on Cloud DNS and setup the various record types for your DNS entry.