How to change goLinkprettyURL in webcenter portal 12c

Hi Everyone,

My requirement is to remove /webcenter/portal from my portal. Suppose my portal URL is like  http://host:port/webcenter/portal/MyPortal/Home.  I want it to be http://host:port/MyPortal/Home.

For the above requirement i made changes in httpd.conf file with Rewrite URL alias name. But the problem is for the inner pages in my portal i am navigating using goLinkprettyURL expression. So whenever i am trying to navigate to inner pages I am getting /webcenter/portal added to the path.

For inner pages i am getting the path as : http://host:port/webcenter/portal/MyPortal/Home/page1