How do I host multiple SSL websites using ISA inbound rules with 1 external IP address?

Question

How do I host multiple SSL websites(all subdomains) using ISA inbound rules with 1 external IP address?

I think something like option 2 in this question might work?

Answer 1

In addition to using a wildcard or SAN cert, you will need to set up SSL Host Headers on IIS: http://www.sslshopper.com/article-ssl-host-headers-in-iis-7.html

Answer 2

At the minimum you will need a server certificate which supports wildcards (if both of the hostnames are under the same DNS domain) or a certificate with more than one name (if not.)

Once you have that, the remaining should be pretty easy.