Note This guide will help you install ruby on rails on centos 4.2 with apache2 acting as a proxy for lighttpd. This guide may and probably does have errors. Please feel free to correct them! 1. Install Ruby Need to install the testing repository so add this to the /etc/yum.repos.d/ That will allow you to rock ruby 1.8.4 # packages in testing [testing] name=CentOS-$releasever - Testing baseurl=http