Having been involved with many site and domain migrations I thought I had seen everything, but recently I ran into a case where the DNS settings were very much in force but not accessible at all.
Using the whois domaintools site, I could see that the site was hosted at Rackspace, however the domain was configured to point to DreamHost Name Servers rather than to the Name Servers at Rackspace. So I logged into DreamHost to see how it was configured, but the account was closed. And had been closed since 2017!
So while the DNS settings appeared to be working just fine, we could not access them. They were a ghost, present but invisible.
How was this possible? Let me first cover some definitions, and then I will tell you how we ended up with ghost DNS settings, and what we had to do to migrate them off DreamHost.
Now that everyone has more or less jumped on the Responsive Web Design bandwagon (especially in the WordPress world), Google has come along with AMP (Accelerated Mobile Pages). What is AMP and do you need to care?
Remember, oh say five years ago, browsing the internet on a smartphone? It was rather painful, you had to pinch and zoom practically every site just so you could actually read the text. Then Webmasters realized this mobile thing wasn’t going away and starting making their sites mobile friendly. There are a number of ways to make your site mobile friendly, however Responsive Web Design (often just referred to just as “Responsive” or “RWD”) became really popular as a solution.
Problem. You are given a bunch of Perl scripts that take several days to run and expect a Linux environment. You don’t know Perl that well, don’t have a clue whether the scripts will run in your MacOS environment (let alone Windows) and you don’t really want to tie up one of your machines or laptops. What to do?