I have a problem when trying to install the certificate for a domain.
I have my own server with Debian 10 and apache2 installed on which I host some sites.
On the router and firewall I released port 443 for traffic.
I ran the command below on the terminal:
sudo certbot --apache
I informed all the requested information and got the error below:
DNS problem: SERVFAIL looking up CAA for www.domain.com - the domain’s nameservers may be malfunctioning
Should I do any configuration on my server? Is there any entry missing from the DNS records?
Any help will be welcome.