mod_ruby is a module that embeds the Ruby interpreter

Interpreter (computing)

In computer science, an interpreter normally means a computer program that executes, i.e. performs, instructions written in a programming language...

 into the Apache web server to allow Ruby code to execute natively, faster than other CGI

Common Gateway Interface

The Common Gateway Interface is a standard method for web servers software to delegate the generation of web pages to executable files...

 methods. Its drawback is that the characteristic sharing of classes among Apache processes is not safe for multiple applications (e.g. multiple Ruby on Rails

Ruby on Rails

Ruby on Rails, often shortened to Rails or RoR, is an open source web application framework for the Ruby programming language.-History:...

 applications running simultaneously).

See also

• Phusion Passenger (mod rails/mod rack)
  Phusion Passenger
  Phusion Passenger is a module for the Apache HTTP Server and nginx for deployment of Ruby applications, including those built using the Ruby on Rails framework. It is available as a Gem package and is supported on Unix-like operating systems...
  
  
• mod perl
  Mod perl
  mod_perl is an optional module for the Apache HTTP server. It embeds a Perl interpreter into the Apache server, so that dynamic content produced by Perl scripts can be served in response to incoming requests, without the significant overhead of re-launching the Perl interpreter for each request...
  
  
• mod php
• mod python
  Mod python
  mod_python is an Apache HTTP Server module that integrates the Python programming language into the Apache server. It is intended to replace Common Gateway Interface as a method of executing Python scripts on a web server. The promised benefits are faster execution speed and maintaining data over...
  
  
• mod wsgi
  Mod wsgi
  mod_wsgi is an Apache HTTP Server module by Graham Dumpleton that provides a WSGI compliant interface for hosting Python 2.3+ based web applications under Apache. As of version 3.0, mod_wsgi supports Python 2.6 and 3.1...
  
  

External links

• mod_ruby project