here are my requirements. I am building a multi-tenant site where the user check with there website name after they get their own subdomain.it is the automated Assume that my domain domain.com. This site is hosted in a Plesk and the web server is IIS.
Just to clarify, here is an example of what I need:
Public CAs are prohibited from issue Multilevel wildcard (and browsers won’t accept it)
and wildcard certificate only vailds single level of subdomain ( *.com.domain.com won’t vaild for www.test.com.domain.com) I think you will need “technically constrained subordinate CA” so you can sign certificates as needed.
if the wildcard is the first character, followed by a dot, that's a normal wildcard (works only with com domains and not with subdomains or domains with a public suffix with a dot).
So start with some basics:
More difficult: I don't know if Plesk supports such a solution. May be using Plesk blocks that. I have no idea if Plesk has an API. Or do you create the new subdomains manual?