gistfile1.txt

root@vps-be46a6fc:/home/debian# certbot certonly --standalone --noninteractive --agree-tos --email info@openttd.org -d bananas-1.cdn.openttd.org,bananas-1.cdn.staging.openttd.org
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator standalone, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for bananas-1.cdn.openttd.org
http-01 challenge for bananas-1.cdn.staging.openttd.org
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. bananas-1.cdn.staging.openttd.org (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://bananas-1.cdn.staging.openttd.org/.well-known/acme-challenge/eGl4F4it3pU5DcI7Y6r4zX01Keg1-yTB4hsh0zB1Qy4: Error getting validation data, bananas-1.cdn.openttd.org (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://bananas-1.cdn.openttd.org/.well-known/acme-challenge/CBvFT4JjFDz4pwWska3QkNcy-D36QELhPlAirVw_BOs: Error getting validation data

IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: bananas-1.cdn.staging.openttd.org
   Type:   connection
   Detail: Fetching
   http://bananas-1.cdn.staging.openttd.org/.well-known/acme-challenge/eGl4F4it3pU5DcI7Y6r4zX01Keg1-yTB4hsh0zB1Qy4:
   Error getting validation data

   Domain: bananas-1.cdn.openttd.org
   Type:   connection
   Detail: Fetching
   http://bananas-1.cdn.openttd.org/.well-known/acme-challenge/CBvFT4JjFDz4pwWska3QkNcy-D36QELhPlAirVw_BOs:
   Error getting validation data

   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. 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.