I have been working with IBM Support for the past two weeks to enable the IHS server on the Domino server for HTTP. So far, we have success at getting port 80 traffic through IHS to the Domino server, and are still trying to get port 443 traffic from IHS through to the Domino server - we get an error message - The Connection was Interrupted in FireFox
We used the IKeyMan utility to get the SSL certificates into the IHS system - the Domino keyring files are not used in this configuration.
Here are links to some of this, and I will post more as this evolves.
Google will start flagging this in browsers Nov1, and the the others will follow suit shortly
Here are some links for troubleshooting tips.
Open Mic Webcast: Implementing TLS support with IBM Domino 9.x and IBM HTTP Server (IHS) - 19 November 2013 (Q&A, presentation, audio recording)
http://www-01.ibm.com/support/docview.wss?uid=swg27039743
IBM HTTP SSL Server Questions and Answers
http://publib.boulder.ibm.com/httpserv/ihsdiag/ssl_questions.html
Is it possible to run IBM HTTP Server (IHS) on the same computer as a Domino server?
http://www-01.ibm.com/support/docview.wss?uid=swg21612316
Installing the IBM HTTP server module to support TLS
http://www-12.lotus.com/ldd/doc/domino_notes/9.0/help9_admin.nsf/855dc7fcfd5fec9a85256b870069c0ab/caa25dc9fd95076b85257b19005b3894?OpenDocument&Highlight=0,Installing,the,IBM,HTTP,server,module,to,support,TLS
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IKeyMan SSL Setup
http://www-01.ibm.com/support/docview.wss?uid=swg21006430