My domain is: grafoman.site
I ran this command:
# certbot certonly -d 'grafoman.site' --webroot
It produced this output:
Obtaining a new certificate Performing the following challenges: http-01 challenge for grafoman.site Using the webroot path /srv/letsencrypt for all unmatched domains. Waiting for verification... Cleaning up challenges Failed authorization procedure. grafoman.site (http-01): urn:ietf:params:acme:error:unknownHost :: The server could not resolve a domain name :: No valid IP addresses found for grafoman.site IMPORTANT NOTES: - The following errors were reported by the server: Domain: grafoman.site Type: unknownHost Detail: No valid IP addresses found for grafoman.site To fix these errors, please make sure that your domain name was entered correctly and the DNS A/AAAA record(s) for that domain contain(s) the right IP address.
My web server is (include version): nginx 1.12
The operating system my web server runs on is (include version): Alpine Linux v3.8, https://hub.docker.com/r/linuxserver/letsencrypt
My hosting provider, if applicable, is: -
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
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you’re using Certbot): certbot 0.31.0
The domain itself has been okay for several years, no registrar or DNS issues, was properly indexed by Google. Now I’m moving away from CloudFlare, HTTP is working fine (DNS A record is probably outdated at time you’re reading this - long story - but once I update it, it’s okay again), but LE fails to issue any cert, staging or not staging. Error text is also somewhat inaccurate, I can’t even figure out if the domain appears non-existing for LE (
Type: unknownHost), or DNS reply seems empty, or it’s not empty but addresses seem invalid or inapplicable, or DNS did not answer - all in all, I’m completely lost here. Any ideas?
Unbound DNS checker doesn’t see any problems as well: https://unboundtest.com/m/A/grafoman.site/RUPEIZQB