I got an error saying that there are no IP addresses linked to this Domain
My question is:
Do I run this command for my entire Domain , or must I include the server name:
certbot --apache -d myserver.ourdomain.com
?
I was also confused about this when creating the virtual host Apache config file,
where the Server is actually pointing to the Domain, as we had a certificate with Godaddy, that covered all servers in the Domain.
I shall post all my details, I just first want to know whether I should use FQDN name or, just the Domain name
You want the certificate to include the hostnames what the users will type into the address bar of their browsers. (When speaking about HTTP, if we are talking about mail protocols such as IMAP or SMTP, the certificate needs to include the hostnames the users will type into their mail client at the "server hostname" [or equivalent] option and also to include the hostname in the MX record of the domain.)