Please help to resolve this error! owncloud installation on debian 12

Requesting a certificate for

Certbot failed to authenticate some domains (authenticator: apache). The Certificate Authority reported these problems:
Type: dns
Detail: DNS problem: NXDOMAIN looking up A for - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for - check that a DNS record exists for this domain

Hint: The Certificate Authority failed to verify the temporary Apache configuration changes made by Certbot. Ensure that the listed domains point to this Apache server and that it is accessible from the internet.

Some challenges have failed.
Ask for help or search for solutions at See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.

Do you own that domain name? Because it looks to be available for purchase.

Let's Encrypt only issues certificates for publicly known domain names.


If it's local, how's the DNS?

You can't get a globally signed cert for a domain you don't own.


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