In many ways, this would be more cumbersome for customers than www.domain.com/cpanel, as I am using cPanel and could set it to redirect to secure connections and use a self-signed cert, but the browser warning would always crop up and I am looking to avoid that.
If you purchase the SSL cert for host.domain.com and redirect www,domain.com/cpanel to https://host.domain.com:2083/ you shouldn't get any browser warnings. As long as your SSL cert is valid for host.domain.com I haven't seen any browsers complain about the alternate port.
Until TLS support improves this is probably the easiest way to run multiple SSL sites on a single IP address.
PS Sorry for the comma in the URL.
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