[Users] alias to user and admin portal

Hi, what is the best practice to make a hostname alias for user and admin web portal? By default the admin portal is on hostname/webadmin/webadmin/WebAdmin.html and user portal on hostname/UserPortal/org.ovirt.engine.ui.userportal.UserPortal/UserPortal.html what are the best directives (apache) to run the applications on adminportal.hostname and userportal.hostname? Thank you. Best Regards, Andrej