DNS articles and guides from the kant.au team.
An SSL certificate renewal can fail for a reason that has nothing to do with your certificate, your DNS host, or your account with your certificate authority. It can fail because of a DNS record most people have never looked at, and never set, that quietly authorizes some certificate authorities and not others. What a […]
Read more →
You changed a DNS record, and someone told you to wait 24 to 48 hours for it to propagate. That advice describes a real experience, a change that takes a while to show up everywhere, but the wrong mechanism behind it. Knowing the real one tells you exactly what to check instead of just waiting […]
Read more →
An agency gets a support call. A client’s email has been broken for three days. They dig in and find the MX records changed, quietly, a few days earlier. Not a hack, just an edit by someone at the client’s end who thought they were fixing something. Three days of missed business emails because no […]
Read more →