How do we run / configure couchbase server to support ssl or https connection?

Something is not working as described:
I have installed couchbase-server-community_3.0.1-ubuntu12.04_amd64.deb
on Linux 3.13.0-43-generic #72-Ubuntu SMP Mon Dec 8 19:35:06 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

On the admin portal can see there is a ssl certificate.

Accessing the portal using http://localhost:8091 works
Accessing the portal using https://localhost:18091 results in “This web page is not available” using Chrome.

telnet: Unable to connect to remote host: Connection refused

running ‘netstat -tuna’ in command line does not list port 18091 as being listen to.