Ravindra BagaleCourses & study guides

Chapter 9: Domain Names, DNS and Subdomains

Common Mistakes I See Students Make

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  • Pointing the domain to the auto-assigned public IP, then stopping the instance overnight.
  • Leaving GoDaddy's "Parked" A record next to the new one, so the site randomly shows a parking page.
  • Typing the full name blog.example.com in the Name field instead of just blog.
  • Creating a CNAME for the apex @.
  • Editing records in GoDaddy after switching name servers to Route 53, where they are ignored.
  • Forgetting www, either in DNS or in server_name.
  • Buying all the add-ons (hosting, email, SSL) that are not needed for EC2.
  • Not verifying the registrant email, and the domain gets suspended.
  • Running certbot before DNS resolves, and hitting the rate limit after repeated failures.