Modify your hosts file
Last updated on: 2016-06-08 Authored by: Rackspace Support
Modifying your hosts file enables you to override the DNS for a domain, on that particular machine. This is useful when you want to test your site without the test link, prior to going live with SSL; verify that an alias site works, prior to DNS changes; and for other DNS-related reasons. Modifying your hosts file causes your local machine to look directly at the IP address specified.
To modify the hosts file, you add two entries to the file that contains the IP address that you want the site to resolve to and the address. Adding the following two lines, for example, point www.domain.com anddomain.com to our current PHP5-ITK (“Refreshed” PHP5) cluster:
220.127.116.11 www.domain.com 18.104.22.168 domain.com