Your tutorial, The Perfect Server - CentOS 6.3 x86_64 (Apache2, Dovecot, ISPConfig 3) - Page 4 says: Starting with version 3.0.3, ISPConfig 3 has built-in support for Ruby. Instead of using CGI/FastCGI, ISPConfig depends on mod_ruby being available in the server's Apache. For CentOS 6.3, there's no mod_ruby package available, so we must compile it ourselves. Then, the tutorial says to download mod_ruby: wget http://modruby.net/archive/mod_ruby-1.3.0.tar.gz My problem is that modruby.net doesn't exist anymore. My first question is: is ruby the same as mod_ruby? If I can find a source for Ruby and compile it on my machine, will that allow ISPConfig 3 to run properly? BTW, I found what appears to be source for mod_ruby at https://github.com/davidhrbac/specs/blob/master/mod_ruby.spec Is this the source and could I compile mod_ruby from this? BTW, maybe this source is better...http://fossies.org/unix/www/apache_httpd_modules/mod_ruby-1.3.0.tar.gz/ Maybe I answered my own question...what do you think? Yes, I did answer my own question...the wget fossies.org/unix/www/apache_httpd_modules/mod_ruby-1.3-0.tar.gz command appears to have worked and I appear to have installed mod_ruby by following the directions... My second unrelated question is: my machine is a 32 bit machine rather than 64 bit...so I'm using the Centos i686 downloads rather than the Centos x86_64 downloads...does your tutorial apply for i686 as well as x86_64? Thanks for your help.