Configure a Custom Error Page on the Web Server

Problem, Question

How do I configure a custom error page from the dispatcher web server (not CQ)?

Resolution, Answer

Please refer to the documentation for your specific web server. This configuration is specific to the web server you are using with the dispatcher module.

Here is documentation for how to do this on 2 commonly used web servers: Apache Web Server:
2.2: http://httpd.apache.org/docs/2.2/custom-error.html
Microsoft IIS:
5.0: http://technet.microsoft.com/en-us/library/bb727138.aspx