Hive account@themarkymark, very interesting. I'm not running a full node, but I have several sites that are using Let's Encrypt Certificates with the auto-renewal turned on. In reading their post about the vulnerability it looks like they are confident they can fix the issue and turn back on the tls-sni challenge. I'm going to have to look at all my certificates now. Here's to hoping they fix the issue before my 90 day renewal comes up.