Update your A records, these are the DNS records that hold the IP address your domains should point to - You need to update your A records to 199.34.228.59, for instance:

Login to your domain registrar - There are dozens of registrars, all have their own user interface and paths to updating a domain A records. Here are the most popular registrar guides you can follow:

Updating an A record in eNom looks like this:

Allow up to 24 hours for your domain records to update after changing your A records - If you are unsure then get in touch with your domain provider for instructions on how to update your domain.