How do you enable cgi in Apache tomcat?

To enable CGI in Apache Tomcat, you need to make sure the cgi servlet is configured in your web.xml file. Additionally, you should place your CGI scripts in the appropriate directory, typically under webapps/yourapp/cgi-bin. Ensure that the scripts have the correct permissions to be executed and that the org.apache.catalina.servlets.CGIServlet is properly defined in your web.xml. Finally, restart Tomcat for the changes to take effect.