Change DNS settings on Linux
https://support.rackspace.com/how-to/changing-dns-settings-on-linux22.07.2019 · If you find that your server’s Domain Name Server (DNS) settings are misconfigured or you prefer to use your own, this article describes how to change your Linux® server’s DNS settings. If you want to test your site without the test link prior to going live with SSL or verify that an alias site works prior to DNS changes, you can Modify your hosts file to override the DNS for …