Nginx + Redmine - Vidyalaya Knowledge Base

We use Redmine in our MCA lab so that students can get hands on experience of version control software like SVN and Mercurial, Issue Tracker, Wiki, Q & A, Discussion Forum etc. It is a beautiful product and we love it. It works perfectly in our intranet. But the troubles start when we try to host it on internet at http://projects.rmv.ac.in. Redmine is written in Ruby on Rails and is memory hungry.