My domain is: tehtotalpwnage.io
I ran this command:
./letsencrypt-auto certonly --standalone
It produced this output:
Failed authorization procedure. solder.tehtotalpwnage.io (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Failed to connect to 188.8.131.52:443 for TLS-SNI-01 challenge IMPORTANT NOTES: - The following errors were reported by the server: Domain: solder.tehtotalpwnage.io Type: connection Detail: Failed to connect to 184.108.40.206:443 for TLS-SNI-01 challenge To fix these errors, please make sure that your domain name was entered correctly and the DNS A record(s) for that domain contain(s) the right IP address. Additionally, please check that your computer has a publicly routable IP address and that no firewalls are preventing the server from communicating with the client. If you're using the webroot plugin, you should also verify that you are serving files from the webroot path you provided.
My operating system is (include version): Ubuntu 14.04 LTS
My web server is (include version): Nginx 1.10.1
My hosting provider, if applicable, is: Self Hosted
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): No
I’ve actually used Let’s Encrypt in the past without running into any problems. I also did a bit of tinkering, and this is what I know: For some reason, any subdomains I append after the 8th subdomain automatically have this error. I tested the subdomains individually and didn’t get any problems when getting individual certificates. So the problem only exists when I try to add more than eight subdomains to my request. Now, my only question is why in the world this would happen.