If you’re not familiar with how DNS works, I recommend reading Marco Chiappetta’s article about how to speed up your DNS. If it still sounds complex, there’s a comic series that explains how DNS works ...
DNS works as the telephone directory for the Internet, and when it works, it's seamless to the user. But along with the growing move to self-host services comes a push to run DNS servers at home, ...
If you have two separate virtual private servers running Ubuntu or any other flavor of Linux, it's relatively easy to configure the machines to serve content for different subdomains of the same ...