This page allows you to specify a custom error response for this part of the server. You can specify a file to send back with errors, or you can specify a CGI script to run. You may want to change the way a directory behaves when it gets an error. Instead of sending back the default file, you may want to send a custom error response instead. For example, if a user tried to repeatedly connect to a section of your server protected by access control, and failed, you could have the error file be returned with information on how to get an account.
There are several different kinds of errors that you can customize the server's response to:

Unauthorized
This error occurs when a user tries to access a section of the server protected by access control and eventually fails. You might put information on how to become a member on this page.
Forbidden
This error occurs when the server does not have file system permissions to read something, or if the server is not permitted to follow symbolic links.
Not Found
This error occurs when the server cannot find a document it is looking for - or when it has been instructed to deny the existence of a document to certain addresses.
Server Error
This error occurs when the server is misconfigured or when a catastrophic error occurs such as a core dump or the system running out of memory.

Select the error response you want to customize. Add an absolute pathname to the file you want to return on that error code. Check the checkbox if this is a CGI program that you want to be executed.

To remove a customization, simply delete the filename from the text box next to the error code.