Travis Cornwell commented on Oct 12, 2015

Re: 11.3 Configuring remote content search service

For WebSphere Portal - adding the user to the PORTAL virtual resource does not make them a full Portal administrator. It does grant them many of the privileges of an administrator, but not full privileges. If you want to grant full access, please see option #1 in the following document to duplicate role assignments: http://www-01.ibm.com/support/docview.wss?uid=swg21599046

Andrea Fontana. commented on Jun 12, 2014

Re: 11.3 Configuring remote content search service

Not completely agree, give the user administrative rights of connections in the portal is not strictly necessary.

you can following my article about this configuration.

How to index IBM Connection in Portal environment Step-byStep Guide

http://www-10.lotus.com/ldd/lcwiki.nsf/dx/How_to_index_IBM_Connection_in_Portal__environment_Step-byStep_Guide