What is the best way to configure iPlanet/Sun ONE be the HTTP/HTTPS front end to a JBoss/Tomcat application?
Are there any performance considerations?
How would this compare with the native integration between Apache httpd and Tomcat?
There are plugins available for iPlanet which do exactly this. Check out the Reverse Proxy plugin in the documentation for iPlanet.
This may help: http://docs.sun.com/source/816-7156-10/agplugin.html#18923