So, I want to use the same certificate for my site as I'm using to login to roundcube webmail. It all works, except they have different hostnames: mail.mydomain.com is my server, while the certificate is for www.mydomain.com
. So, it works but gives an error that, in Internet Explorer, is no less scary than the one I got with a self-signed certificate. From my understanding the hostname for the server could be anything, so can I just change the hostname on my server to www? Or is it possible to change it so you login to roundcube mail from the site rather than port 81 of the server? Basically, is there an easier way than changing the IP on the server and buying a new certificate for the same domain with a different hostname and IP address?