My domain is: sinusbot.suicidearmy.de
I ran this command: sudo certbot certonly -a webroot --webroot-path=/usr/share/nginx/html --rsa-key-size 4096 -d sinusbot.suicidearmy.de
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for sinusbot.suicidearmy.de
Using the webroot path /usr/share/nginx/html for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. sinusbot.suicidearmy.de (http-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Could not connect to sinusbot.suicidearmy.de
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: sinusbot.suicidearmy.de
Type: connection
Detail: Could not connect to sinusbot.suicidearmy.de
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):
Linux CentOS-7.3
My web server is (include version):
nginx
I had request a Certificate in the past successfully, but after changing die domain name the certbot throws this error.