Can't generate Let's encrypt certificate for Nginx: "Error getting validation data"
Hello. I've been trying to generate a Let's encrypt certificate, on my "Leslieville" droplet (following this guide) but without success.
While running this command,
sudo certbot --nginx -d etiennebaque.com -d www.etiennebaque.com
I got the following error:
Failed authorization procedure. etiennebaque.com (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Error getting validation data, www.
etiennebaque.com (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Error getting validation data
DNS for etiennebaque.com is hosted on Dreamhost. I checked the A record there, it has the correct droplet IP address in it.
I don't know what to do now, so some help would be very much appreciated.
Many thanks,
Etienne
Do you have any firewall setup on your server?
No, there's no active firewall on my server.
I just enabled a firewall, but nothing changed. Same error.