I ran this command: sudo certbot --nginx -d 17068.l.time4vps.cloud -d www.17068.l.time4vps.cloud
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for www.17068.l.time4vps.cloud
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. www.17068.l.time4vps.cloud (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: dns :: DNS problem: NXDOMAIN looking up A for www.17068.l.time4vps.cloud
IMPORTANT NOTES:
The following errors were reported by the server:
Domain: www.17068.l.time4vps.cloud
Type: connection
Detail: dns :: DNS problem: NXDOMAIN looking up A for
www.17068.l.time4vps.cloud
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.
My web server is: NGINX 1.14.0
The operating system my web server runs on is: Ubuntu 18.04
My hosting provider, if applicable, is: Time4vps
I can login to a root shell on my machine: yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no