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Requesting a certificate for mynginx.adams.org
Certbot failed to authenticate some domains (authenticator: nginx). The Certificate Authority reported these problems:
Detail: DNS problem: NXDOMAIN looking up A for mynginx.adams.org - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for mynginx.adams.org - check that a DNS record exists for this domain
Hint: The Certificate Authority failed to verify the temporary nginx configuration changes made by Certbot. Ensure the listed domains point to this nginx server and that it is accessible from the internet.
Some challenges have failed.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version): nginx/1.23.3
The operating system my web server runs on is (include version): Ubuntu 22.04
My hosting provider, if applicable, is: N/A
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): Ubuntu Gnome Terminal
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 2.3.0
Disclaimer: I throw the question into chatGPT and this is the result.
The error message indicates that the Let's Encrypt certificate authority was unable to verify that your domain, mynginx.adams.org, exists and is pointing to the correct IP address. This could be due to various reasons, such as a DNS misconfiguration, firewall issues, or server connectivity problems.
To troubleshoot this issue, you should try the following steps:
Verify that the domain mynginx.adams.org is registered and points to the correct IP address. You can use a DNS lookup tool like dig or nslookup to check the DNS records. For example:
$ dig mynginx.adams.org
;; ANSWER SECTION:
mynginx.adams.org. 3600 IN A <IP_ADDRESS>
If the DNS records are not found or incorrect, you should fix the DNS configuration.
Ensure that your server is accessible from the internet and that there are no firewall rules blocking incoming traffic on port 80 and 443. You can test the connectivity using the telnet command. For example:
Ok - got it. It's just a name I have given to my server. Thanks for sharing this info. I was under the impression that I will be able to generated authentic and approved certificates for enabling SSL for local servers as well