I need some information prior to wiping a server, reinstalling the OS and panel, and restoring a particular domain onto it. I'm of the school of ask first, then do; and this seemed like the place to ask.
The situation is that the Web site and DNS for the domain are hosted elsewhere, but I host the mail. DNS for
webmail.domain.tld do point to my server's IP. Also, those two URLs do bring up default placeholder Web pages when accessed via HTTP/HTTPS.
Can I request a cert for only
webmail.domain.tld without requesting one for the parent domain? I really need it only for the mail. Everything else is hosted elsewhere.
OS will be Rocky 8.6, panel will be Virtualmin Pro. The hostname and IP's will remain the same, as will the mail servers for the domains. Dovecot and Postfix will handle the mail.